Added user material is broken

Part I:

• Create a new 3D project
• Open Content Library and go to Materials tab
• Add a random material like Aluminium
• Go to navigator, and edit the added material (e.g. change the base color). Also rename it to MyMat.
• Open Material Browser
• Right click on MyMat and Add to content library

Part II:

• Create another 3D project
• Open Content Library and go to User Assets ** tab / Material section
• Add MyMat material by pressing the + button on the bottom right of the item
• Go to the navigator - The item is broken

Part III:

There are two issues with the added item

1. Generated.Bundles.Materials import term is missing in MyMyMat.qml which is located in Generated.Bundles.UserMaterials
2. Even if you add the import, it doesn't work, because The base material (Aluminium in this case) is not added from content library to the project. If you add it. it will work.