On Fri Oct 14 16:57:30 2022 +0000, Fabian Maurer wrote:
It happens because in `OpenType_GDEF_UpdateGlyphProps` we go into `case MarkGlyph`, which sets fClusterStart to 0. Guess that is not tested against single characters. How do we continue here?
I'd continue by testing shaping with this font and this text on Windows, to see how properties are set.