ID 459955 - FBX loader overwrites selection sets.

Problem summary

When a mesh in an fbx file contains multiple selection sets, later selection sets overwrite (or clear) selections in earlier sets when loading the scene.

Customer reported version
modo.14.0v2

Customer reported platform
windows10

Steps to reproduce

1) Download and open the attached scene file.
2) Go to the Select tab and select Selection Sets 
3) Set Quick Select to Caps and notice both the caps are selected.

4) Now set the Quick Select to Both, notice that the caps are no longer selected.

Expected behaviour
They should both be selected.

Actual behaviour
A later selection set cleared the caps of the cylinder in the previous selection set.

Workaround
Unknown.

Reproduced by support

This bug has been reproduced in:

14.2v1 - Windows 10

14.1v2 - Windows 10

14.1v1 - Windows 10

14.0v2 - Windows 10

14.0v1 - Windows 10

13.2v1 - Windows 10

13.1v1 - Windows 10

13.0v1 - Windows 10

12.2v2 - Windows 10

Earliest version tested

12.2v2 - This issue appears to be in all versions of the product.