Popup view is not removed after enqueueing in the background

[Stypox]

Checklist

• I am using the latest version - 0.20.10
• I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• I have read the contribution guidelines given at https://github.com/TeamNewPipe/NewPipe/blob/HEAD/.github/CONTRIBUTING.md.
• This issue contains only one bug. I will open one issue for every bug report I want to file.

Steps to reproduce the bug

1. Start playing a video in a popup
2. Open the details of a different video
3. Long press on the background button

Actual behaviour

The popup view remains visible, but the underlying player correctly switches to background so the image on the popup is not updated. The popup cannot be moved, but the buttons inside the player still work.

Expected behavior

The player switches to background.

Screenshots/Screen recordings

https://drive.google.com/file/d/1-tJuISV3c_mIS5lCCUpBhPqxMRrlSO-E/view?usp=drivesdk

[ShareASmile]

Closing it as fixed as I can't reproduce with the steps given above