After a release has been merged or deleted, the cover art edits are not displayed correctly. Two glitches can be then spotted:

1. The release field has no link even though the merge created a redirect.
   (It is expected to have no link only when the release has been deleted.)
2. The cover art is not displayed in any case: merged or deleted release.
   (It is expected to be shown anyway but maybe for applied "Remove cover art" edits.)

See for example edit #97086435 (applied "Remove cover art" edit on a merged release).

More examples needed.