incorrect hinting of scaled subglyphs
Migrated from: [SAVANNAH-55001]
Werner LEMBERG reported:
In composite glyphs, subglyphs must be first scaled then hinted, as explicitly specified in the specification.
FreeType currently handles scaled subglyphs the wrong way: It first hints, then scales.
Cf. https://github.com/googlei18n/noto-fonts/issues/1265#issuecomment-435703740