"GameManager" GameObject is on itself modified after shooting in the Play Mode in the Third Person Multiplayer template

How to reproduce:
1. Create a new Multiplayer Third-Person template
2. Open the "[BB] Shooter MultiplayerSession" scene
3. Enter the Play Mode
4. Right-click to enter the shooting mode and shoot 
5. Exit the Play Mode and observe the results

Expected results: No pop-ups appear
Actual results: "Save changes made in Play Mode" pop-up appear because "GameManager" GameObject was modified

Reproducible with: 6000.3.1f1

Reproducible on: Windows 11 
Not reproducible on: No other environment tested