How to reproduce:
1. Open the user's attached project
2. In the Project window, select the Asset "test"
3. In the Inspector window, click to select one of the elements from the ListView of Material fields
4. Use the Up and Down keys to navigate the list with the keyboard
5. Press Enter to open the Select Material window, then press Escape to close it
6. Attempt step 4 again

Expected result: the ListView has focus and can be navigated with the keyboard
Actual result: the ListView loses focus and cannot be navigated with the keyboard

Reproducible with: 2020.3.24f1, 2021.2.0a3
Not reproducible with: 2021.2.0a4, 2021.2.5f1, 2022.1.0a16
Could not test with: 2019.4.33f1 (error CS0246: The type or namespace name 'ScriptedImporter' could not be found)