Include the include_directives missing in some operations.

Author: lgebhardt

lib/jsonapi/request_parser.rb

@@ -326,7 +326,8 @@ def add_show_related_resource_operation(relationship_type)
         relationship_type: relationship_type,
         source_klass: @source_klass,
         source_id: @source_id,
-        fields: @fields
+        fields: @fields,
+        include_directives: @include_directives
       )
     end
 
@@ -340,7 +341,8 @@ def add_show_related_resources_operation(relationship_type)
         filters: @source_klass.verify_filters(@filters, @context),
         sort_criteria: @sort_criteria,
         paginator: @paginator,
-        fields: @fields
+        fields: @fields,
+        include_directives: @include_directives
       )
     end
 
@@ -364,7 +366,8 @@ def parse_add_operation(data)
           @resource_klass,
           context: @context,
           data: data,
-          fields: @fields
+          fields: @fields,
+          include_directives: @include_directives
         )
       end
     rescue JSONAPI::Exceptions::Error => e
@@ -632,7 +635,8 @@ def parse_single_replace_operation(data, keys, id_key_presence_check_required: t
         context: @context,
         resource_id: key,
         data: parse_params(data, updatable_fields),
-        fields: @fields
+        fields: @fields,
+        include_directives: @include_directives
       )
     end