My font has pre-built fractions, previously halves, quarters, and eighths, and i am expanding it to all vulgar fractions in Unicode: thirds, fifths, /oneseventh, /oneninth, /onetenth
The Glyphs generated frac feature works for all of those except /oneseventh, /oneninth, /onetenth (Unicodes U+2150 U+2151 U+2152).
Seems like it should be fixed.
I don’t mind too much, it’s three glyphs and i’ll add the rules by hand, if i can find the forum post that explains how to have a feature that is automatically generated with manual bits added.