…tion calculation for complex polygons: when enumerating polygon rings, if previous rings were outside bookkeeped aabb would prevent checking if edge crosses tile border and disable joining and displaying features split and asserting on check (in dev build).

Backporting fill extrusions on terrain #11041 fix from gl-native is related: when adjacent tiles are of different zooms, breaks or no building parts were visible.

Fixes: #11516, #11041

There is occasional flakiness on rendering fill color (zoom 16 evaluation is not seen on drape but zoom 15) and fill color is made constant to prevent it.