When I create a Merge Request ticking the box "Delete source branch when merge request is accepted.", the branch doesn't get deleted. I can see the message "The source branch is being deleted".(Attached Screenshot) Version : Community Edition (CE) - 13.6.7 ### Steps to reproduce Create a feature branch and open a merge request by selecting "Delete source branch when merge request is accepted."  ### What is the current *bug* behavior? The branch won't get deleted. ### What is the expected *correct* behavior? The branch should be deleted. Please advise ASAP. Thanks in advance.