Avatar is lost on clicking Back after removing

How to reproduce:
1. Open Profile, add avatar and save changes
2. Press Edit button
3. Press Remove avatar button (do not press 'save changes'button!)
4. Press Back (you can click on browser's button or button in the bottom of a page)
As a result, Profile page with default avatar is shown

Expected, that Profile page with previous avatar is opened(changes should not be applied until 'save changes' button is pressed)