Project Settings window disappears when enabling or disabling Unity VCS in Unity Version Control Settings tab in the Project Settings window a few times

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Open the Project Settings window (Edit > Project Settings)
3. Open the Unity Version Control Settings tab in the Project Settings window
4. Click the "Enable"/"Disable" buttons a few times
5. Observe the Project Settings window

Actual results: The Project Settings window disappears

Expected results: The Project Settings window is still in the foreground

Reproducible with versions: 6000.0.62f1, 6000.2.12f1, 6000.3.0b10, 6000.4.0a4, 6000.5.0a1

Tested on (OS): MacOS Tahoe 26.0.1, Windows 11