What editor is it that rewrites the same file.
I've seen the same effect in Windows with Notepad, the default editor, and with Notetab Light, my own favorite.
The test is pretty simple. Stash dummy.txt, containing just "This is the original," in the
res directory of Minimal. Make an album, and edit dummy.txt in the album's
res directory. Now go back to the skin version, and see what's in it.
What alerted me to this was even more surprising. I replaced some skin
res files in File Explorer, and those new files magically started appearing in existing albums (I noticed that my backup program was suddenly finding "new" files where there shouldn't have been any).