Different Serialization layout is used when script is outside of the parent class Assembly

Reproduction steps:
1. Open the attached project “SerializationBug“
2. Build and run the Player (File>Build and Run)
3. Observe the Player logs

Expected result: Player runs without any errors
Actual result: Error is logged “A scripted object (probably IntInerited?) has a different serialization layout when loading. (Read 48 bytes but expected 52 bytes)
Did you #ifdef UNITY_EDITOR a section of your serialized properties in any of your scripts?“

Reproducible with: 2022.3.5f1, 2023.1.4f1, 2023.2.0a23
Not reproducible with: 2021.3.28f1

Reproducible on: Windows 11