Apple Music service assumes albums always have certain properties

[KiruPoruno]

While playing around with this tool, I came across a persistent error:

Checking directory permissions...[done]
[https://music.apple.com/us/album/an-infinite-regression/478776210?i=467902919]
 [•] Identifying service...[Apple Music]
 [•] Checking authentication...[authenticated]
 Detected [track]
 Obtaining track metadata...(failed: [Cannot read properties of undefined (reading '0')])
 [i] An error occurred while processing the query

And it took a bit to realize $SHOW_DEBUG_STACK was a thing, but once that was the case it was easy to track down the issue:

[TypeError: Cannot read properties of undefined (reading '0')
    at AppleMusic.wrapTrackMeta (src/services/apple_music.js:166:38)
    at src/services/apple_music.js:315:21]

The issue stems from the Apple Music service assuming that all tracks have an artist set on the album, this isn't the case, as I realized, although rare, it does occur (as shown with the track in the logs), and the albumInfo.artists will in such a case just be undefined

Edit: After fixing the above locally, this also happens with albumInfo.tracks.reduce() a couple lines down...