Should ufo2ft.filters.transformations change the advance width?

[simoncozens]

I feel like it should change the advance widths when the glyphs are scaled, but currently it doesn't. Happy to write a PR if we think it should.

[anthrotype]

the filter was originally added to mimic the behavior of Glyphs.app Transformations filter. What does it do about advances?

[simoncozens]

It scales them.

[anthrotype]

does it do automatically whenever there's a scale, or are they treated separately?

[simoncozens]

No, automatically when there's a scale set.

[moyogo]

A PR would be nice :-).

This reminds me, #238 needs to be rebased so ufo2ft's filter can also handle metrics independently.