Reproduction steps:
1. Open the attached “BugRepro” project
2. Open “Assets/Scenes/SampleScene” Scene
3. Enter Play Mode
4. Observe the Console
5. Exit Play Mode and close the project
6. Add the project’s “Assets“, “Packages” and “ProjectSettings” folders to version control
7. Using Unity Hub, open the project in one of the “Reproducible with” versions
8. Close the project
9. Using version control, revert all the changes done to the Project in step 7
10. Open the project using the initial project version
11. Enter Play Mode
12. Observe the Console

Expected result: Messages logged in step 4 and step 12 are the same “Integral value of Player is 0“
Actual result: Messaged logged in step 4 is “Integral value of Player is 0“, while message logged in step 12 is “Integral value of 2 is 2“

Reproducible with: 6000.0.0b11, 6000.0.1f1
Not reproducible with: 2022.3.28f1, 2023.3.0b10
Couldn't test with: 2021.3.38f1 (this is the initial project version)

Reproducible on: Windows 10 (By user), Windows 11
Not reproducible on: No other environment tested

Note: CQA used GitHub for version control, but any version control should do