[ufo] when reverse_direction is True, we always want to modify the input glyphs
[ufo] when reverse_direction is True, we always want to modify the input glyphs

otherwise, the direction would only flipped if the glyph contains at least one cubic curve; whereas, we want to reverse the contour direction of all the glyphs in the font, even if they are just made of straight lines.

googlefonts/fonttools,fonttools/fonttools,googlefonts/cu2qu,googlei18n/cu2qu