Fix: unlink sequences reviews and publish first review without status.

Description of fix

• Unlink sequence review at sequence editor's root fails.
• Publish first review without setting a status fails.

Checklist

Please check if your MR fulfills the following requirements:

• Build was run locally and any changes were pushed
• Lint has passed locally without error
• CHANGELOG.md has been updated
• Branch has been rebased on merge branch

FYI: @strangenoise