Reproduction steps:
1. Create a new project
2. Click Search button in Editor top toolbar to open Search window
3. Type anything in the search bar to produce search results (e.g. “create”)
4. Double-click any of the search results below the first option that create an item (e.g. Assets, GameObjects or Components)

Actual result: The Search window refreshes and the first option in the search result list is highlighted
Expected result: The selected option in the Search window remains highlighted

Reproducible with: 6000.4.0a5, 6000.4.0b10, 6000.5.0a7
Not reproducible with: 6000.0.68f1, 6000.3.10f1, 6000.4.0a4

Reproduced on: Windows 11
Not reproduced on: macOS Sequoia 26.2 (M4)