Morph Targets create seams when used with split meshes

When a mesh has been divided into multiple pieces seams can appear after applying morph targets. The blend shapes appear work as expected if the mesh is kept whole.

1. Download the attached project
2. Open the project
3. Play in Editor

Result: The seams in the split mesh become more apparent the more extreme the changes in the morph target
Expected: The Mesh would render in the same manner as the mesh that has not been split