Blender Git Loki

Fix T79074: Mesh Topology info not being updated after changes

All these data arrays are created for a specific topology, so they should be
freed and updated when the PBVH rebuilds. Previously, this was only
happening when freeing the SculptSession, but it also needs to happen in
BKE_sculpt_update_object_before_eval to avoid reusing out of date data.

Reviewed By: sergey

Maniphest Tasks: T79074

Differential Revision: https://developer.blender.org/D8357