Reproduction steps:
1. Open the attached project
2. Open the "Assets/Scenes/MainGame.unity" scene
3. Enter Play Mode
4. Observe the Console

Expected result: Nothing of note happens
Actual result: “Leak Detected” log is thrown

Reproducible with: 1.8.12 (2023.3.0b1, 2023.3.0b3)
Not reproducible with: 1.8.12 (2021.3.34f1, 2022.3.19f1, 2023.2.9f1, 2023.3.0a19)
Fixed in: 1.8.12 (2023.3.0b4)

Reproduced on: macOS Monterey 12.6 (Intel), Windows 11 Pro, Windows 10 (User)

Notes:
- Full log message: “Leak Detected : Persistent allocates 40 individual allocations. To find out more please enable 'Preferences > Jobs > Leak Detection Level > Enabled With Stack Trace' and reproduce the leak again.”
- Issue reproduces after repeating the reproduction steps several times on Windows 11 Pro
- The regression is in Editor versions, not the Package itself