JS compilation error, specific variable is not defined

/label ~"Type: Bug" ~"Status: Need triage"

Steps to reproduce

1. Open instance in browser (currently logged in as a user)
2. Be redirected to /library
3. Click on any of the tracks on the page
4. Error in console shows up

What happens?

When attempting to play several songs on a FW (0.21) instance I get the following error: Uncaught (in promise) ReferenceError: metadata is not defined which when unminified links to the following code: https://dev.funkwhale.audio/funkwhale/funkwhale/-/blob/develop/front/src/components/audio/Player.vue#L728

This is an unusual error as in the code I linked I see:

let metatata = {
            title: this.currentTrack.title,
            artist: this.currentTrack.artist.name,
          }

which means that the metadata variable is defined, however in the compiled code in the browser I see:

 "mediaSession"in navigator && ({
                                            title: n.currentTrack.title,
                                            artist: n.currentTrack.artist.name
                                        },
                                        n.currentTrack.album && (metadata.album = n.currentTrack.album.title,
                                        metadata.artwork = [{

and as you can see metadata variable is not defined.

Context

Funkwhale version(s) affected: 0.21 Browser: Chrome Instance configuration: Docker