Absolute path reference material breaks when source material changed

1) Load model

2) Set mesh material as porcelain

3) Set another mesh as absolute path reference to the #2 mesh

4) Change #2 material to thin_glass_refractive

5) Reference is now broken and the mesh from #3 is not rendered in the viewer and is wrongly rendered with the old material in the editor

Expected to be able to change the source material type