<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=18633) </details> <!--IssueSummary end--> ## Description - Undo removing/deleting a branch. - A branch can be removed in the branch list UI, e.g. `https://gitlab.com/gitlab-org/gitlab-ce/branches`. - A branch can also be removed as part of the merge request flow, i.e. if it has been marked for removal upon merge. - We want to undo removing a branch and recover it.