How to reproduce:
1. Create and open a new Unity project
2. Right-mouse-click on the Assets folder in the Project window
3. Type "#" in the search bar
Expected results: "#" is typed in the search bar
Actual results: Nothing is typed in the search bar
Reproducible with: 2023.2.0b13, 2023.3.0a10
Could not test with: 2021.3.31f1, 2022.3.10f1, 2023.1.14f1 (no search function in the Create Menu)
Reproducible on: Windows 10 22H2
Not reproducible on: No other environment tested