Review Criteria can be created without defined criteria, is unusable

1. Log in as admin
2. Go to administration, Review Criteria
3. Add a criteria, without giving it text (just press the save button)
4. Go to a document in the editor and press Reject on a target
5. Select the review criteria option (shows as "Minor-")
6. Press Confirm Rejection

Actual:
The rejection is not saved, as the text is not filled in

Expected:
The review criteria entry save should not be possible without defined criteria