• Initialize the data items of the map files before saving them
• Fix the sorting of map images

When you just resave a map without modifying it, you will get the same hash now. Until now it was rather random.

Suggestion: a lot of servers use callvote options as section labels, for example: !screenshot_2019-09-21_13-23-34 Those could be flagged by the server and rendered differently client-side, as well as not be callable. It should be doable in a backwards compatible way. I'm not quite sure how it should be rendered in the UI though.