Visual Effect property override remains permanently checked when Timeline preview ends

How to reproduce:

1. Open the attached "IN-142681_VisualEffectPropertyPreview" project
2. Open the SampleScene
3. Select the "Simple Burst" GameObject
4. Ensure the Size property (Visual Effect > Properties > Size) is disabled in the Inspector
5. Open the Timeline tab (Window > Sequencing > Timeline)
6. Select the "Timeline" GameObject in the hierarchy
7. Go back to the "Simple Burst" GameObject
8. Observe the checked Size property (Visual Effect > Properties > Size)

Actual result: The Size property is checked
Expected result: The Size property is unchecked

Reproducible with: 2023.1.0a1, 6000.0.74f1, 6000.3.15f1, 6000.4.7f1, 6000.5.0b8, 6000.6.0a5

Reproducible on: Windows 11
Not reproducible on: No other environments tested