Timeline does not re-evaluate Inspector property changes when that property is added after the the clip was selected

How to reproduce:

1. Open the attached project “IN-151771”
2. In the Project window, open the “Assets/Scenes/ArrayProperty/SampleScene_ArrayProperty” scene
3. In the Hierarchy, select the “Director” GameObject
4. In the Timeline window, select the first track
5. In the Inspector, expand the “Multi Setting Timeline Clip” component so that the “Template → Values” array is visible
6. Change the value on “Element 0” and observe the Game or Scene views
7. Add a new element to the array
8. Change the value on “Element 1” and observe the Game or Scene views

Actual result: Changing the value on “Element 0” moves the first cube while changing the value on “Element 1” does not move the second cube
Expected result: Changing the value on “Element 1” moves the second cube

Reproducible with: 1.8.13 (6000.3.23f1), 6000.6.0b10, 6000.7.0a5
Not reproducible with: 1.8.12 (6000.3.23f1)

Reproducible on: macOS 26.5.2 (M4 Max)
Not reproducible on: No other environments tested

Workaround: Selecting a different track and then re-selecting the original track before adjusting the added value