This was a mistake in rB87629b2a7443 `BKE_object_shapekey_free` would never return `true`, so DEG updates would not happen... So `ob->shapenr` was not up-to-date etc., leading to crash in `BKE_mesh_nomain_to_mesh` shapekey handling... Reviewers: brecht Maniphest Tasks: T68710 Differential Revision: https://developer.blender.org/D5501