Reproduction steps:
1. Open the attached “IN-97595_InputSystem_EnumSerialisation“ project
2. Open the “EnumSerialisation_InputSystem.inputactions“ Input Actions Asset in a text editor
3. Observe the “SomeEnum“ value in the processors field of the only existing action
Expected result: It has an assigned value of 100
Actual result: It has an assigned value of 3
Reproducible with: 1.7.0, 1.9.0, 1.11.1, 1.11.2, 1.12.0 (2022.3.60f1), 1.13.1 (6000.0.43f1, 6000.1.0b11, 6000.2.0a7)
Reproducible on: M1 Max MacOS 15.1.1
Not reproducible on: No other environment tested