When you skip track before it loads, it starts playing in background after a while

Steps to reproduce

1. Create queue with several tracks
2. Start playing queue
3. Fast skip several tracks
4. Pause playback

What happens?

There's a pretty big chance you will end with at least one track playing in background without ability to control volume nor pause.

What is expected?

Don't play skipped track even if it was waiting to be loaded.

Context

Funkwhale version(s) affected: 0.21.2, 1.0-rc1 (I tested only this two)

I used Firefox 80, bug was there pretty long, haven't tried on browser other than FF.

Backend is using docker multi-container configuration and is behind haproxy.