`/porch play 0` doesn't work

I like to have track 0 ("None") running because I like jingles such as the level up and quest complete noises, but I don't want background music.

If I play 0, `[None]` shows in the status bar in the UI as expected, but the current BGM continues to play. If I double-click on None in the plugin window, it works as expected. Also, if I `/porch play (any other track)` that also works as expected.