Updated GitHub references.

packages/ckeditor5-alignment/src/alignmentui.ts

@@ -189,7 +189,8 @@ export class AlignmentUI extends Plugin {
 			dropdownView.bind( 'isEnabled' ).to( command, 'isEnabled' );
 
 			// Focus the editable after executing the command.
-			// Overrides a default behaviour where the focus is moved to the dropdown button (#12125).
+			// Overrides a default behaviour where the focus is moved to the dropdown button.
+			// See https://github.com/ckeditor/ckeditor5/issues/12125.
 			this.listenTo( dropdownView, 'execute', () => {
 				editor.editing.view.focus();
 			} );

packages/ckeditor5-autoformat/src/blockautoformatediting.ts

@@ -115,7 +115,7 @@ export function blockAutoformatEditing(
 
 		const blockToFormat = entry.position.parent;
 
-		// Block formatting should be disabled in codeBlocks (#5800).
+		// Block formatting should be disabled in codeBlocks (https://github.com/ckeditor/ckeditor5/issues/5800).
 		if ( blockToFormat.is( 'element', 'codeBlock' ) ) {
 			return;
 		}

packages/ckeditor5-block-quote/theme/blockquote.css

@@ -4,7 +4,7 @@
  */
 
 .ck-content blockquote {
-	/* See #12 */
+	/* See https://github.com/ckeditor/ckeditor5-block-quote/issues/12 */
 	overflow: hidden;
 
 	/* https://github.com/ckeditor/ckeditor5-block-quote/issues/15 */

packages/ckeditor5-bookmark/src/bookmarkui.ts

@@ -162,7 +162,7 @@ export class BookmarkUI extends Plugin {
 	public override destroy(): void {
 		super.destroy();
 
-		// Destroy created UI components as they are not automatically destroyed (see ckeditor5#1341).
+		// Destroy created UI components as they are not automatically destroyed (see https://github.com/ckeditor/ckeditor5/issues/1341).
 		if ( this.formView ) {
 			this.formView.destroy();
 		}

packages/ckeditor5-bookmark/tests/bookmarkui.js

@@ -777,7 +777,7 @@ describe( 'BookmarkUI', () => {
 		} );
 
 		it( 'should add #formView to the balloon and attach the balloon to the marker element when selection is collapsed', () => {
-			// (#7926)
+			// (https://github.com/ckeditor/ckeditor5/issues/7926)
 			_setModelData( editor.model, '<paragraph>f[]oo</paragraph>' );
 			bookmarkUIFeature._showFormView();
 			formView = bookmarkUIFeature.formView;

packages/ckeditor5-clipboard/src/utils/viewtoplaintext.ts

@@ -36,7 +36,7 @@ export function viewToPlainText(
 	}
 
 	if ( viewItem.is( 'element', 'br' ) ) {
-		return '\n'; // Convert soft breaks to single line break (#8045).
+		return '\n'; // Convert soft breaks to single line break (https://github.com/ckeditor/ckeditor5/issues/8045).
 	}
 
 	/**

packages/ckeditor5-clipboard/tests/pasteplaintext.js

@@ -208,7 +208,7 @@ describe( 'PastePlainText', () => {
 	} );
 
 	it( 'should work if the insertContent event is cancelled', () => {
-		// (#7887).
+		// (https://github.com/ckeditor/ckeditor5/issues/7887).
 		_setModelData( model, '<paragraph><$text bold="true">Bolded []text.</$text></paragraph>' );
 
 		const dataTransferMock = createDataTransfer( {

packages/ckeditor5-code-block/src/codeblockcommand.ts

@@ -129,7 +129,7 @@ export class CodeBlockCommand extends Command {
 			writer.setAttribute( 'language', language, block );
 			schema.removeDisallowedAttributes( [ block ], writer );
 
-			// Remove children of the  `codeBlock` element that are not allowed. See #9567.
+			// Remove children of the  `codeBlock` element that are not allowed. See https://github.com/ckeditor/ckeditor5/issues/9567.
 			Array.from( block.getChildren() )
 				.filter( child => !schema.checkChild( block, child ) )
 				.forEach( child => writer.remove( child ) );

packages/ckeditor5-code-block/tests/codeblockediting.js

@@ -857,7 +857,7 @@ describe( 'CodeBlockEditing', () => {
 				} );
 		} );
 
-		// See #5910.
+		// See https://github.com/ckeditor/ckeditor5/issues/5910.
 		it( 'should allow to indent an entire code block with at least two lines', () => {
 			const element = document.createElement( 'div' );
 			document.body.appendChild( element );

packages/ckeditor5-core/tests/editor/editor.js

@@ -1422,7 +1422,7 @@ describe( 'Editor', () => {
 			editor.model.document.createRoot( '$root', 'main' );
 			editor.model.document.createRoot( '$root', 'secondRoot' );
 			editor.model.schema.extend( '$text', { allowIn: '$root' } );
-			editor.fire( 'ready' ); // (#6139)
+			editor.fire( 'ready' ); // (https://github.com/ckeditor/ckeditor5/issues/6139)
 		} );
 
 		afterEach( async () => {

packages/ckeditor5-core/tests/editor/utils/elementapimixin.js

@@ -18,7 +18,7 @@ describe( 'ElementApiMixin', () => {
 		editor = new CustomEditor();
 		editor.model.document.createRoot();
 		editor.model.schema.extend( '$text', { allowIn: '$root' } );
-		editor.fire( 'ready' ); // (#6139)
+		editor.fire( 'ready' ); // (https://github.com/ckeditor/ckeditor5/issues/6139)
 	} );
 
 	afterEach( async () => {

packages/ckeditor5-emoji/src/emojimention.ts

@@ -251,7 +251,8 @@ export class EmojiMention extends Plugin {
 				return [];
 			}
 
-			// If the repository plugin is not available, return an empty feed to avoid confusion. See: #17842.
+			// If the repository plugin is not available, return an empty feed to avoid confusion.
+			// See: https://github.com/ckeditor/ckeditor5/issues/17842.
 			if ( !this._isEmojiRepositoryAvailable ) {
 				return [];
 			}

packages/ckeditor5-emoji/src/emojipicker.ts

@@ -138,7 +138,7 @@ export class EmojiPicker extends Plugin {
 	 */
 	public showUI( searchValue: string = '' ): void {
 		// Show visual selection on a text when the contextual balloon is displayed.
-		// See #17654.
+		// See https://github.com/ckeditor/ckeditor5/issues/17654.
 		this._showFakeVisualSelection();
 
 		if ( !this.emojiPickerView ) {

packages/ckeditor5-emoji/tests/emojipicker.js

@@ -433,7 +433,7 @@ describe( 'EmojiPicker', () => {
 			} ).to.not.throw();
 		} );
 
-		// See #17819.
+		// See https://github.com/ckeditor/ckeditor5/issues/17819.
 		it( 'should not change the selection after opening the UI', async () => {
 			_setModelData(
 				editor.model,
@@ -447,7 +447,7 @@ describe( 'EmojiPicker', () => {
 			);
 		} );
 
-		// See #17964
+		// See https://github.com/ckeditor/ckeditor5/issues/17964
 		it( 'should have the ck-emoji-picker-balloon class to make sure z-index does not conflict with the dialog system', () => {
 			emojiPicker.showUI();
 

packages/ckeditor5-engine/src/conversion/downcasthelpers.ts

@@ -1657,7 +1657,8 @@ function changeAttribute( attributeCreator: DowncastAttributeCreatorFunction ) {
 		const viewWriter = conversionApi.writer;
 
 		// If model item cannot be mapped to a view element, it means item is not an `Element` instance but a `ModelTextProxy` node.
-		// Only elements can have attributes in a view so do not proceed for anything else (#1587).
+		// Only elements can have attributes in a view so do not proceed for anything else.
+		// See https://github.com/ckeditor/ckeditor5-engine/issues/1587.
 		if ( !viewElement ) {
 			/**
 			 * This error occurs when a {@link module:engine/model/textproxy~ModelTextProxy text node's} attribute is to be downcasted

packages/ckeditor5-engine/src/conversion/upcasthelpers.ts

@@ -1159,7 +1159,7 @@ function setAttributeOn(
 		}
 
 		// Mark the node as consumed even if the attribute will not be updated because it's in a valid context (schema)
-		// and would be converted if the attribute wouldn't be present. See #8921.
+		// and would be converted if the attribute wouldn't be present. See https://github.com/ckeditor/ckeditor5/issues/8921.
 		result = true;
 
 		// Do not override the attribute if it's already present.

packages/ckeditor5-engine/src/model/element.ts

@@ -397,7 +397,7 @@ export class ModelElement extends ModelNode {
 ModelElement.prototype.is = function( this: ModelElement, type: string, name?: string ): boolean {
 	if ( !name ) {
 		return type === 'element' || type === 'model:element' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'node' || type === 'model:node';
 	}
 

packages/ckeditor5-engine/src/model/liveposition.ts

@@ -112,7 +112,7 @@ export class ModelLivePosition extends /* #__PURE__ */ EmitterMixin( ModelPositi
 // Proper overload would interfere with that.
 ModelLivePosition.prototype.is = function( type: string ): boolean {
 	return type === 'livePosition' || type === 'model:livePosition' ||
-		// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+		// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 		type == 'position' || type === 'model:position';
 } as any;
 

packages/ckeditor5-engine/src/model/liverange.ts

@@ -90,7 +90,7 @@ export class ModelLiveRange extends /* #__PURE__ */ EmitterMixin( ModelRange ) {
 // Proper overload would interfere with that.
 ModelLiveRange.prototype.is = function( type: string ): boolean {
 	return type === 'liveRange' || type === 'model:liveRange' ||
-		// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+		// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 		type == 'range' || type === 'model:range';
 } as any;
 

packages/ckeditor5-engine/src/model/position.ts

@@ -228,7 +228,8 @@ export class ModelPosition extends ModelTypeCheckable {
 	 * Node directly after this position. Returns `null` if this position is at the end of its parent, or if it is in a text node.
 	 */
 	public get nodeAfter(): ModelNode | null {
-		// Cache the parent and reuse for performance reasons. See #6579 and #6582.
+		// Cache the parent and reuse for performance reasons.
+		// See https://github.com/ckeditor/ckeditor5/issues/6579 and https://github.com/ckeditor/ckeditor5/issues/6582.
 		const parent = this.parent;
 
 		return getNodeAfterPosition( this, parent, getTextNodeAtPosition( this, parent ) );
@@ -238,7 +239,8 @@ export class ModelPosition extends ModelTypeCheckable {
 	 * Node directly before this position. Returns `null` if this position is at the start of its parent, or if it is in a text node.
 	 */
 	public get nodeBefore(): ModelNode | null {
-		// Cache the parent and reuse for performance reasons. See #6579 and #6582.
+		// Cache the parent and reuse for performance reasons.
+		// See https://github.com/ckeditor/ckeditor5/issues/6579 and https://github.com/ckeditor/ckeditor5/issues/6582.
 		const parent = this.parent;
 
 		return getNodeBeforePosition( this, parent, getTextNodeAtPosition( this, parent ) );

packages/ckeditor5-engine/src/model/rootelement.ts

@@ -94,14 +94,14 @@ export class ModelRootElement extends ModelElement {
 ModelRootElement.prototype.is = function( this: ModelRootElement, type: string, name?: string ): boolean {
 	if ( !name ) {
 		return type === 'rootElement' || type === 'model:rootElement' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'element' || type === 'model:element' ||
 			type === 'node' || type === 'model:node';
 	}
 
 	return name === this.name && (
 		type === 'rootElement' || type === 'model:rootElement' ||
-		// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+		// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 		type === 'element' || type === 'model:element'
 	);
 } as any;

packages/ckeditor5-engine/src/model/text.ts

@@ -112,6 +112,6 @@ ModelText.prototype.is = function( type: string ): boolean {
 	return type === '$text' || type === 'model:$text' ||
 		// This are legacy values kept for backward compatibility.
 		type === 'text' || type === 'model:text' ||
-		// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+		// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 		type === 'node' || type === 'model:node';
 } as any;

packages/ckeditor5-engine/src/model/treewalker.ts

@@ -239,7 +239,8 @@ export class ModelTreeWalker implements Iterable<ModelTreeWalkerValue> {
 		}
 
 		// Get node just after the current position.
-		// Use a highly optimized version instead of checking the text node first and then getting the node after. See #6582.
+		// Use a highly optimized version instead of checking the text node first and then getting the node after.
+		// See https://github.com/ckeditor/ckeditor5/issues/6582.
 		const textNodeAtPosition = getTextNodeAtPosition( position, parent );
 		const node = textNodeAtPosition || getNodeAfterPosition( position, parent, textNodeAtPosition );
 
@@ -318,7 +319,8 @@ export class ModelTreeWalker implements Iterable<ModelTreeWalkerValue> {
 		}
 
 		// Get node just before the current position.
-		// Use a highly optimized version instead of checking the text node first and then getting the node before. See #6582.
+		// Use a highly optimized version instead of checking the text node first and then getting the node before.
+		// See https://github.com/ckeditor/ckeditor5/issues/6582.
 		const positionParent = position.parent;
 		const textNodeAtPosition = getTextNodeAtPosition( position, positionParent );
 		const node = textNodeAtPosition || getNodeBeforePosition( position, positionParent, textNodeAtPosition );

packages/ckeditor5-engine/src/view/attributeelement.ts

@@ -217,13 +217,13 @@ export class ViewAttributeElement extends ViewElement {
 ViewAttributeElement.prototype.is = function( this: ViewAttributeElement, type: string, name?: string ): boolean {
 	if ( !name ) {
 		return type === 'attributeElement' || type === 'view:attributeElement' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'element' || type === 'view:element' ||
 			type === 'node' || type === 'view:node';
 	} else {
 		return name === this.name && (
 			type === 'attributeElement' || type === 'view:attributeElement' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'element' || type === 'view:element'
 		);
 	}

packages/ckeditor5-engine/src/view/containerelement.ts

@@ -73,13 +73,13 @@ export class ViewContainerElement extends ViewElement {
 ViewContainerElement.prototype.is = function( this: ViewContainerElement, type: string, name?: string ): boolean {
 	if ( !name ) {
 		return type === 'containerElement' || type === 'view:containerElement' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'element' || type === 'view:element' ||
 			type === 'node' || type === 'view:node';
 	} else {
 		return name === this.name && (
 			type === 'containerElement' || type === 'view:containerElement' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'element' || type === 'view:element'
 		);
 	}
@@ -94,7 +94,8 @@ export function getViewFillerOffset( this: ViewContainerElement ): number | null
 	const children = [ ...this.getChildren() ];
 	let lastChild: ViewNode | undefined = children[ this.childCount - 1 ];
 
-	// Block filler is required after a `<br>` if it's the last element in its container. See #1422.
+	// Block filler is required after a `<br>` if it's the last element in its container.
+	// See https://github.com/ckeditor/ckeditor5-engine/issues/1422.
 	if ( lastChild && lastChild.is( 'element', 'br' ) ) {
 		return this.childCount;
 	}

packages/ckeditor5-engine/src/view/domconverter.ts

@@ -418,7 +418,7 @@ export class ViewDomConverter {
 				if ( viewElementOrFragment.name === '$comment' ) {
 					domElement = this._domDocument.createComment( viewElementOrFragment.getCustomProperty( '$rawContent' ) as string );
 				} else {
-					// UIElement has its own render() method (see #799).
+					// UIElement has its own render() method (see https://github.com/ckeditor/ckeditor5/issues/799).
 					domElement = viewElementOrFragment.render( this._domDocument, this );
 				}
 
@@ -1566,7 +1566,8 @@ export class ViewDomConverter {
 				// Change all consecutive whitespace characters (from the [ \n\t\r] set –
 				// see https://github.com/ckeditor/ckeditor5-engine/issues/822#issuecomment-311670249) to a single space character.
 				// That's how multiple whitespaces are treated when rendered, so we normalize those whitespaces.
-				// We're replacing 1+ (and not 2+) to also normalize singular \n\t\r characters (#822).
+				// We're replacing 1+ (and not 2+) to also normalize singular \n\t\r characters.
+				// See https://github.com/ckeditor/ckeditor5/issues/822.
 				data = node.data.replace( /[ \n\t\r]{1,}/g, ' ' );
 				nodeEndsWithSpace = /[^\S\u00A0]/.test( data.charAt( data.length - 1 ) );
 
@@ -1593,7 +1594,8 @@ export class ViewDomConverter {
 				// At the beginning and end of a block element, Firefox inserts normal space + <br> instead of non-breaking space.
 				// This means that the text node starts/end with normal space instead of non-breaking space.
 				// This causes a problem because the normal space would be removed in `.replace` calls above. To prevent that,
-				// the inline filler is removed only after the data is initially processed (by the `.replace` above). See ckeditor5#692.
+				// the inline filler is removed only after the data is initially processed (by the `.replace` above).
+				// See https://github.com/ckeditor/ckeditor5/issues/692.
 				data = getDataWithoutFiller( data );
 
 				// Block filler handling.

packages/ckeditor5-engine/src/view/editableelement.ts

@@ -114,14 +114,14 @@ export class ViewEditableElement extends /* #__PURE__ */ ObservableMixin( ViewCo
 ViewEditableElement.prototype.is = function( this: ViewEditableElement, type: string, name?: string ): boolean {
 	if ( !name ) {
 		return type === 'editableElement' || type === 'view:editableElement' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'containerElement' || type === 'view:containerElement' ||
 			type === 'element' || type === 'view:element' ||
 			type === 'node' || type === 'view:node';
 	} else {
 		return name === this.name && (
 			type === 'editableElement' || type === 'view:editableElement' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'containerElement' || type === 'view:containerElement' ||
 			type === 'element' || type === 'view:element'
 		);

packages/ckeditor5-engine/src/view/element.ts

@@ -1217,7 +1217,7 @@ export class ViewElement extends ViewNode {
 ViewElement.prototype.is = function( this: ViewElement, type: string, name?: string ): boolean {
 	if ( !name ) {
 		return type === 'element' || type === 'view:element' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'node' || type === 'view:node';
 	} else {
 		return name === this.name && ( type === 'element' || type === 'view:element' );

packages/ckeditor5-engine/src/view/emptyelement.ts

@@ -87,7 +87,7 @@ export class ViewEmptyElement extends ViewElement {
 ViewEmptyElement.prototype.is = function( this: ViewEmptyElement, type: string, name?: string ): boolean {
 	if ( !name ) {
 		return type === 'emptyElement' || type === 'view:emptyElement' ||
-			// From super.is(). This is highly utilised method and cannot call super. See ckeditor/ckeditor5#6529.
+			// From super.is(). This is highly utilised method and cannot call super. See https://github.com/ckeditor/ckeditor5/issues/6529.
 			type === 'element' || type === 'view:element' ||
 			type === 'node' || type === 'view:node';
 	} else {

packages/ckeditor5-engine/src/view/observer/mutationobserver.ts

@@ -217,7 +217,8 @@ export class MutationObserver extends Observer {
 			}
 		}
 
-		// In case only non-relevant mutations were recorded it skips the event and force render (#5600).
+		// In case only non-relevant mutations were recorded it skips the event and force render.
+		// See https://github.com/ckeditor/ckeditor5/issues/5600.
 		if ( mutations.length ) {
 			// @if CK_DEBUG_TYPING // if ( ( window as any ).logCKETyping ) {
 			// @if CK_DEBUG_TYPING // 	_debouncedLine();