composites in hinted instances are broken from instantiation

[laerm0]

Looking for a gftools script to accept a list of GIDs (to account for unencoded glyphs) and then swap in the same glyph from a different font. Issue filed at googlefonts/gftools#141

[anthrotype]

This could potentially be a bug in varLib. Please open an issue in fonttools to remind me to look into this when I'm back from vacation next week, thanks

[laerm0]

Huh @anthrotype , in the act of writing out the issue for you, I had to do some granular explanation of what was happening in the hint code and, in doing so, I discovered that the hint code is wrong! 😧 Microsoft didn't get the syntax right for their autohinter. 🤦‍♂ So don't worry about varLib, it's probably fine. Guess I will talk to Microsoft...

[davelab6]

Are composites in hinted or unhinted instances no longer broken from instantiation?

[laerm0]

Well, TN has their build using ttfautohint, so…