"x result" text remains in the Hierarchy search field after clearing the search query via the "x" button

Steps to reproduce:

1. Create a new 3D project
2. In the Hierarchy, right-click on any GameObject and select "Find References in Scene"
3. Observe in the Hierarchy search field text "1 result" appears
4. Click on the "x" to clear the search query
5. Observe the search field

Actual results: "1 result" text remains until mouse cursor is moved lower in the Hierarchy

Expected results: "1 result" text is instantly cleared as the search query is cleared

Reproducible with versions: 6000.7.0a4

Can’t test with versions: 6000.5.6f1, 6000.6.0b6 (search results are not written in text)

Tested on (OS): macOS 26.5, Ubuntu 24.04