Blender Git Loki

Armature: Cheap edit-to-object mode speedup.

`fix_bonelist_roll()` is already recursive, and was calling recursive `BKE_armature_where_is_bone()` twice!

Changed `BKE_armature_where_is_bone()` to controll whether we recurse over children or not.

With full Victor's rig, we gain 16% in `ED_armature_from_edit()` (from 31ms to 26ms).
With a dummy test-case 100 bones chain, we gain 80% in `ED_armature_from_edit()` (from 1.25ms to 0.25ms).

Not crucial, but still worth it. ;)