I have an opened phabricator revision and I have accidentally deleted the underlying git branch. I can retrieve the diffs from the revision and re-create the branch.
But, Is there a way howto restore the deleted branch from the revision?
You can use arc patch to create a branch. It will create a branch called arcpatch-D### where D### is your Diff ID. Once you have that branch, you can use git commands to create a new branch based from the head of that branch and name it however you like.
Recommended steps:
1. arc patch D###
2. git checkout -b new-branch-name
From there you can do anything else you like.