Steps to reproduce:
1. Open the attached “IN-95655_Test.zip” project
2. In the Project Window, select the “Sphere.prefab”
3. In the Inspector Window, set the Label to “NewLabel”
4. In the Project Window Search Bar, type “l:NewLabel:
5. Observe that the “Sphere.prefab” is shown in the Search results
6. Click Window → Search → New Window
7. In the Search Bar type “l:NewLabel”
8. Observe the results

Expected result: The “Sphere.prefab” is shown in the Search results
Actual result: The Search results are empty

Reproducible in: 2022.3.59f1, 6000.0.40f1, 6000.1.0a8
Not reproducible in: 6000.1.0b8, 6000.2.0a5
Fixed in: 6000.1.0a9

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