ID 410115 - Select Polygons doesn't work when mesh with material tags is dragged into a new scene

Problem summary
Select Polygons do not work when mesh with material tags is dragged into a new scene.

Customer reported version
modo.13.1v1

Customer reported platform
windows10

Steps to reproduce

1) Create a scene with materials and textures assigned to a model.

2) Drag the model from the open scene into a new "untitled" scene and choose "yes" to importing children and shaders. (Render camera may be reset to original position)

3) Open the Shader Tree.

4) Drag the materials out of the Imported Shaders group.

5) Delete the empty Imported Shaders group.

6) The material assignments will become broken and replaced with new, blank, default materials.

7) Attempt to "Select Polygons" by right-clicking on a material.

Expected behaviour
For the materials to remained assigned and to be able to "Select Polygons" by right-clicking on a material.

Actual behaviour
Material assignments become broken and the "Select Polygons" function does not work.

Workaround
Save, close, and reopen the scene.

Reproduced by support
This bug has been reproduced in:

13.2v1 - Windows 10 - CentOS7 - macOS 10.14

13.1v1 - Windows 10 - CentOS7 - macOS 10.14

Unable to reproduce bug in:

13.0v1 - Windows 10 - centOS7 - macOS 10.14

Earliest version tested

13.0v1 - This issue doesn't appear in this version and has regressed