Override squash commit message before merging
Overriding the squash commit message is helpful if I am merging my own commits, but typically the last merge request approver does. This means that feature is of much less value.
As the merge request author, I want to be able to override the squash commit message at some time in advance of someone else merging my merge request.
Allow the squash commit message and merge commit message to be edited and saved without being merged.