4d790516fb
This is to improve the case of T71055 where curves share the same batch cache when they shouldn't. This however, does not help to fix edit mode display. The real fix would be to have a similar handling to what the mesh modifiers do and duplicate the whole Curve data. But this is too much work/change for the 2.83 release. Reviewed By: sergey Differential Revision: https://developer.blender.org/D7569