Alexandre Franke commented:
What happens when a maintainer makes comments on the gitlab MR? Are they sitting there until hopefully the contributor decides to follow the link that was left on the PR at Github and log in to Gitlab?
Do we have a way to ensure that someone on gitlab who claims to be the github contributor is actually who they pretend to be? Or to put it another way, what happens when the maintainer requests changes to be made to the MR?