In master (bcf9c73cbc8386bdef1e08af73e66d0e5c57ad6e).

Open this file:

BLI_assert failed: source/blender/draw/intern/draw_cache_impl_mesh.c:1187, drw_mesh_batch_cache_check_available(), at '!DRW_ibo_requested(((GPUIndexBuf **)&cache->final.ibo)[i])'

This bisects back to rBc65f4b3d76deb47017a2e661290481e5e613b5db.

Although reverting the changes in master still assert (some refactoring was done in this area since).