one_zero.blackCircled.* glyph name bug

In my font I have a glyph named one_zero.blackCircled, which works perfectly fine. However, whenever I try to create an alternate version — for instance, as part of a stylistic set — it’s not possible to name the new glyph one_zero.blackCircled.ss01 (or with any other suffix). Glyphs always rewrites the name as one_zero.blackCircled_blackCircled.ss01.

This bug appears both in my ‘full’ font and in a completely fresh test font containing just two glyphs. Glyphs version: 3.4 (3414)

BlackCircled-bug.glyphs (1.1 KB)

That is a tricky problem. I’ll look into it but can’t promise anything.
you can temporarily enable “Use custom naming” in Font Info > Other.

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That did the trick, thank you!