Animation Window's Timeline Overlay doesn't update while the undocked Window is being resized

Steps to reproduce:

1. Open a URP Project and import the attached Unity Asset Package
2. Open the "Room2Screens" Prefab and select the "Screens" child GO
3. Open the Animation Window
4. Resize the Width of the undocked Animation Window and observe the Grey Timeline Layout
5. Try docking the Animation Window and resizing it's width

Actual results: The Animation Timeline Overlay does not update it's position while the Window's width is being resized and the Animation Window is undocked, no overlay issues are visible when the Window is docked

Expected results: Overlay repaints it's position while the undocked Animation Window is being resized

Reproducible with versions: 6000.6.0a3, 6000.6.0a5

Can’t test with versions: 6000.0.75f1, 6000.3.15f1, 6000.4.7f1, 6000.5.0b8, 6000.6.0a2 (No overlay)

Tested on (OS): Windows 11