mpdscribble does not work with streams

mpdscribble does not seem to function as expected when mpd is playing from radio streams.  Steps to reproduce:
1. Add a radio that provides full track information, `mpc load https://lainon.life/radio/cafe.ogg.m3u`
2. After `mpc play`, mpdscribble correctly submits the "now playing" status
3. When the track changes, mpdscribble does nothing