Problem

When creating a new release (or later editing the same release), the release editor will not save any metadata for the release track list. The release was originally created by being added from a cluster in Picard. Later, the tracklist was added via plaintext in the release editor. In both cases, the track list was not saved to the release after finishing editing.

Expected results

Adding via Picard

1. Open Picard, sort music file as cluster.
2. Use "Add Cluster as Release" plugin, export data to musicbrainz.org.
3. Fill out all remaining information for release, move to edit notes.
4. Save edits.
5. Release will have tracklist displayed.

Adding via editor

1. Edit existing release.
2. Add tracklist from plaintext (I used the plaintext from adding it via Picard).
3. Fill out any remaining information, move to edit notes.
4. Save edits.
5. Release will have tracklist displayed.

Actual results

1. Follow above steps for either method, save edits.
2. Track list is not displayed: "The tracklist for this release is currently unknown."

References / artifacts

• Album: https://musicbrainz.org/release/ed824c4b-2787-4ccd-a29c-c3b09e370e68
• Tracklist trying to be added:

1. Swoon (2:54)
2. Disorder - El Ten Eleven (3:19)
3. Fanshawe Part 2 - El Ten Eleven (4:58)
4. Ignition (Remix) - El Ten Eleven (2:53)
5. One Four Five - El Ten Eleven (5:01)
6. Ineffable - El Ten Eleven (3:54)
7. Broke But Not Broken - El Ten Eleven (5:59)
8. 3K - El Ten Eleven (5:33)
9. My Only Swerving (Live in Denver) - El Ten Eleven (5:22)

Related to #MBS-7296.