ID 520588 - Closing scene after importing LWO file results in a crash

Problem summary
Closing scene after importing LWO file results in a crash
 
Customer reported version
Modo 15.2v1
 
Customer reported platform
Windows 10
 
Steps to reproduce
 
1) Open Modo

2) Import a .lwo file into the default "Untitled*" scene (File > Import...)

3) Close the scene by clicking the X button to the right of the scene name in the Items List
 
4) Click "Don't Save" in the dialog
 
Expected behaviour
No crash.
 
Actual behaviour
Modo crashed.
 
Workaround
Unknown.
 
Reproduced by support
This bug has been reproduced in:
Modo 16.0v3 - Windows 10 - macOS 10.15.7
Modo 16.0v1 - Windows 10
Modo 15.1v1 - Windows 10 - macOS 10.15.7
 
Unable to reproduce bug in:
Modo 15.0v3 - Windows 10 - macOS 10.15.7 - regression
 
Earliest version tested
Modo 15.0v3 - This issue doesn't appear in this version and has regressed