Gitlab workflow question

Hi all,

I submitted a patch, and needed to make changes.  I made the changes, but am not sure how to submit it for re-review.

I’m used to GitHub, and less formal development practices where it just automatically pops up as open again.

Is there something I need to do to get it so it’s mergeable again?  I’ve been rebasing for weeks.  Should I just close the MR, and submit a new one?

Thanks,
Rob