How to reproduce:
1. Open the attached "IN-108286" project
2. Open the "SampleScene" and enter Play Mode
3. Modify the “BugRepro.cs” script by adding a comment
4. Save the changes to the script
5. Open “InputSystem_Actions” asset
6. Observe the Actions List
7. Exit Play Mode
8. Repeat steps 5-6

Expected result: Changes made during Play Mode to the InputActions asset do not persist outside it
Actual result: Changes persist after exiting Play Mode

Reproducible in: 1.8.1 (6000.0.0f1), 1.12.0(6000.0.37f1, 6000.2.0a3), 1.14.1(6000.0.55f1, 6000.2.0f1, 6000.3.0a4)

Reproducible on: macOS 15.5 (M1), Windows 10 (reporter), Windows 11
Not reproducible on: No other environments tested