@GeorgSeifert if a file has uppercase glyphs using the two unicodes (you ran update info) and you run the script, it will remove some glyphs from the Uppercase glyph.
What I wanted to do:
Automate Add Glyphs, wanted to avoid writing A=a, B=b, C=c and so on.
- make an uppercase glyph
- run Update Glyph info, so it assigns the lowercase one
- run from Script menu “Make Unicase Font”
Result: removes glyphs
Expected: doesn’t remove glyphs! or at least check if you want to
Tested in Glyphs 2 Version 2.6.5 (1342)