Version change sub-window closes automatically when "Add Modules" subwindow is closed

Steps to reproduce:

1. Open Unity Hub
2. Change the version of the project
3. Select some version, press the + button to the right of the version
4. Close the popped-up "Add modules" subwindow
5. Observe the Hub

Actual results: The version change sub-window is closed

Expected results: The version change sub-window is still open

Reproducible with versions: 3.16.4

Tested on (OS): Windows 11 Pro (25H2)