Picard fails to display and save the closing bracket for various tags. The sample that has been known to cause this issue can be found in https://musicbrainz.org/release/901df4d1-6b76-45b6-b476-d07cf7238715

Though the recording artists and their respective "Sort Artist" values are the known tag fields that suffer from issue, other fields could potentially be affected as well. Tested with both file clustering and without clustering (importing the database entry via the browser).