EditorWindow.hasFocus always returns true

To reproduce:
1. Open the project “EditorWindowHasFocusBug”
2. Open the EditorWindowImpl window (Bug Report → Open Test Window)
3. Stop focusing EditorWindow (e.g., click somewhere on your desktop)

Expected result: All three methods return false
Actual result: Method “hasFocus” returns true

Reproducible with: 2020.3.36f1, 2021.3.5f1, 2022.1.7f1, 2022.2.0a17, 2023.1.0a2

Reproduced on: macOS Monterey 12.4 (Intel)

Note: The script is Assets → Scripts → Editor → EditorWindowImpl.cs