How to reproduce:
1. Open the “IN-109404_InspectorTitleBarBug“ project
2. Open the “SampleScene”
3. In the Hierarchy select the “Test” GameObject
4. Disable the “Test Mono Behaviour” Component in the Inspector
5. Observe the extra title bar

Expected result: Both title bars appear as disabled
Actual result: The extra title bar still has the checkmark

Reproducible with: 2023.1.0a6, 6000.0.54f1, 6000.1.14f1, 6000.2.0b11, 6000.3.0a3
Not reproducible with: 2023.1.0a5

Reproducible on: macOS 15.5 (M1 Max), Windows 11 (by user)
Not reproducible on: no other environments tested

Notes:
- Did not reproduce for a “Box Collider” Component
- From the extra title bar you can only disable the “Mono Behaviour” Component, enabling does not work