When editing images, I should see the thumbnail of the existing image

(User Story, Closed -> Fixed, Priority: Critical, Test Status: No automated tests yet , Reported By Justin du Coeur, )
Photos
Summary: At the moment, we just show a simple "Add/Replace Image" button, which is mediocre from a usability perspective. It would be more useful to show the current thumbnail(s), as a clickable image that you can use to delete, rearrange or replace.