Changes can be lost when loading a layout from file when unsaved window is docked

How to reproduce:

1. Open the attached “IN-155110” project
2. Save the current layout to a file (Window -> Layout -> Save Layout to File)
3. Open the “Unsaved Changes Repro” window (Window -> Debug -> Unsaved Changes Repro)
4. Dock the “Unsaved Changes Repro” window next to another window (i.e. Scene view)
5. In the “Unsaved Changes Repro” window, click the “Mark Dirty” button
6. Load the previously saved layout (Window -> Layout -> Load layout from File)
7. Observe the Editor

Actual result: The layout file is loaded and the debug window is gone without being prompted to save changes
Expected result: A dialog asks the user to save unsaved changes

Reproducible with: 6000.0.0f1, 6000.0.84f1, 6000.3.25f1, 60006.6f1, 6000.7.0b3, 7000.0.0a8

Reproducible on: macOS 26.6.2 (M5 Max) (by user), macOS 27.0.1 (M1 Max)
Not reproducible on: No other environments tested

Note: This can be reproduced with any window that tracks asset changes