GenericDropdownMenu does not disappear when a dropdown selection that is shown with PopupWindow.Show() is pressed

Reproduction steps:
1. Open the attached "test_1633907" project
2. Open the "Assets/Test.unity" Scene
3. Open the custom "Dropdown Test" window ("Window -> Dropdown Test")
4. Press the "Show Menu" button and select "Show Popup" selection
5. Observe the dropdown

Expected result: When the "Test Popup Window" appears, the dropdown disappears
Actual result: When the "Test Popup Window" appears, the dropdown does not disappear

Reproducible with: 2022.1.0a1, 2022.3.60f1, 6000.0.47f1, 6000.1.0b15, 6000.2.0a10

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Notes:

• Related to this Discussions thread: https://discussions.unity.com/t/genericdropdownmenu-doesnt-disappear-when-showing-a-custom-popup-through-popupwindow-show/1633907
• Dropdown disappears when pressing the selection that uses Debug.Log