Backup system, adjusted two things :
1 / saving a file you never saved before will now create 2 revisions, one revision for the actual save, and one revision with the original content before the first save. Then each time you save that file it will create only one revision, for the actual save.
2 / the automatic backup of unsaved files in entity and level editors was previously relying on them being translated back into text. Such translation happens frequently in the app, but if you stay in the same level or same entity (without going back to text version of level/entity or loading other file) it never happens. So basically under those conditions, there was no change registered, and thus no autosave was made. Now changes are properly registered even if you stay in the same entity or level view forever. So autosaves of unsaved files will always properly work not only in text editor as before, but now also in entity and level editors
@bWWd