- musicbrainz provider: keyless, with the required descriptive User-Agent and
a 1 req/s throttle so the provider cannot get us blocked. Covers come from
the Cover Art Archive by release id.
- artistHint: directory-grouped items are stored as "Artist/Album", so the
parent directory is used as the artist when querying. Without it the search
for "Random Access Memories" matched an unrelated release by another artist.
- pickBest: providers return fuzzy matches, and taking candidates[0] blindly
is how an album gets the wrong artist. A candidate is only accepted when its
normalised title corresponds to the item's; otherwise the provider is
recorded as notfound and the next one is tried.
Verified live: after the fix the album resolves to Daft Punk, 2013, and the
correct release id, with real cover art. Before the fix it matched a Franz
Kirmann release.