CE backport of "Add or remove blocking merge requests" (!30908) · Merge requests · GitLab.org / GitLab FOSS · GitLab

Nick Thomas requested to merge ce-9688-add-remove-blocking-mrs into master Jul 18, 2019

What does this MR do?

Backports relevant changes in https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/13506 to CE.

See there for more details, or for review.