Enforce naming convention on MR title
Problem to solve
At the moment I can not enforce any naming rules on a MR name. I would like to control the naming convention of a MR because it is hard to tell any new contributor (OpenSource or Enterprise) to follow your naming conventions (based on wiki or whatever, maybe that change from repo to repo). An auto blocking feature would solve that very easy and nice, so that the contributor get fast feedback on wrong naming.
Further details
Benefit would be that any user can contribute and will not break naming convention, so that would support anyone can contribute because he/she get instant feedback from GitLab itself.
Proposal
What does success look like, and how can we measure that?
A simple opt-in regex would be fine to block unwanted naming from MR names