edit_song_library_status() now pins/unpins songs from "Listen Again" instead of adding/removing from Library

[apastel]

I was about to write a post explaining what I'm seeing but I just found this:

@pytest.mark.skip(reason="edit_song_library_status is currently broken due to server-side update")

So, maybe this was already known. What I'm seeing is that it pins/unpins songs from the "Listen Again" section on the home page instead of adding/removing from the library. I've also seen it return HTTP 409: Conflict.

Trying to think of an alternative for adding/removing individual songs from the library (mostly concerned with removing). I know from experience that you can call rate_playlist(playlistId, "INDIFFERENT") on the containing album of a song, and it will remove that song from the library. But with issue #743, it's not always a guarantee we can get the audioPlaylistId of an album using get_album(). So I'm currently searching for a robust way to remove a song from the library.