Back button does not always take the user from a photo to the timeline.

[sdiber]

If a user is viewing their photos, the back button should take them back to the timeline, but instead, it takes them back to whatever was the previous screen. For example, if the user is swiping through photos, the back button will take them back to the previous photo, instead of the timeline.

Steps to reproduce:

1. Open the Photonix App on android and go to the Timeline page
2. Click on a photo to open it
3. Swipe to the left to go to the next photo
4. At this point, the back button should return the user to the Timeline, but instead, will take them back to the photo from step 2

This applies both to the back arrow button in the top right, and to the OS-level back button/gesture in Android

[mryauch]

Can confirm the same on iOS. One of the first things I did when testing the app was opening a photo and swiping left to go to the next photo. Each photo you swipe also adds to a chain as below:

• Open photo 1 from timeline
• Swipe left to photo 2
• Swipe left to photo 3
• Press back button, back to photo 2
• Press back button, back to photo 1
• Press back button, back to timeline