“Inspector - Unsaved Changes Detected” pop-up shows for each Inspector window when editing Sprite Atlas asset

Steps to reproduce:

1. Open the attached project
2. Select the TestSpriteAtlas asset
3. Make any changes in the Inspector window
4. Focus another window to trigger the unsaved changes pop-up

Actual results: The "Inspector - Unsaved Changes Detected" pop-up is shown for every Inspector window that is currently open. Only the first pop-up is meaningful

Expected results: Only one Unsaved Changes Detected pop-up is shown for pending changes to the Sprite Atlas asset

Reproducible with versions: 6000.0.83f1, 6000.3.24f1, 6000.5.11f1, 6000.6.0f1, 6000.7.0a6

Tested on (OS): macOS 26.6.2

Notes:

• Subsequent pop-ups provide little value; if the option to save the changes is selected in the first pop-up, the discard option will do nothing in the follow-up windows
• The issue does not occur for Sprite assets. If the same steps are repeated after selecting the Circle sprite asset instead of the Sprite Atlas asset, only one pop-up will be shown