ufo2ft can now interpolate components or composite glyphs as needed at build time while decomposing composites, as well as add empty component placeholders when keeping the glyphs as composites (as of https://github.com/googlefonts/ufo2ft/pull/826). Therefore glyphsLib does not need any more to add intermediate layers to the component base glyphs when these are defined at fewer master locations than the composite glyphs they are referenced from.
ufo2ft can now interpolate components or composite glyphs as needed at build time while decomposing composites, as well as add empty component placeholders when keeping the glyphs as composites (as of https://github.com/googlefonts/ufo2ft/pull/826). Therefore glyphsLib does not need any more to add intermediate layers to the component base glyphs when these are defined at fewer master locations than the composite glyphs they are referenced from.