Git Github Pull Request Fetching
To fetch the pull request changes from the remote origin of pull request 124 into a local branch pr-124:
shellgit fetch origin pull/124/head:pr-124
To list the remote refs available
shellgit ls-remote origin
To automatically fetch all pull request refs:
shellgit config --add remote.origin.fetch '+refs/pull/<em>/head:refs/remotes/origin/pr/</em>'