Why doesn't STM32CubeIDE rename .ioc file when a project is copied?

[CKugl.1]

In Project Explorer, I:

1. Select a project named "bug"
2. Ctrl-C
3. Ctrl-V
4. Accept the defaults
5. Select projected named "bug2"
6. Attempt to open the .ioc (Device Configuration Tool)
7. Receive this error:

Invalid Input: Must be project's active .ioc file.
 
Project's 'bug2' active one is 'bug2.ioc' file

If I rename bug.ioc to bug2.ioc, it works.