Setting the forum filter to '4' in the URL makes it think there are no posts in the entire forum when there are only no posts with that particular prefix. It shows a 'Be the first to Create a Thread in the 'Feedback Archive' forum.' message which is wrong.
One can also access the hidden prefix by using Developer Tools in Chrome or Firefox or another similar function.
One can also access the hidden prefix by using Developer Tools in Chrome or Firefox or another similar function.