Locate the section for your github remote in the .git/config file. It looks like this:
[remote "origin"]
fetch = +refs/heads/*:refs/remotes/origin/*
url = git@github.com:joyent/node.git
Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:
| ▶ brew list -1 | while read line; do brew unlink $line; brew link $line; done | |
| Unlinking /usr/local/Cellar/appledoc/2.2... 0 links removed | |
| Linking /usr/local/Cellar/appledoc/2.2... 1 symlinks created | |
| Unlinking /usr/local/Cellar/autoconf/2.69... 0 links removed | |
| Linking /usr/local/Cellar/autoconf/2.69... 18 symlinks created | |
| Unlinking /usr/local/Cellar/bash-completion/1.3... 184 links removed | |
| Linking /usr/local/Cellar/bash-completion/1.3... 182 symlinks created | |
| Unlinking /usr/local/Cellar/bgrep/0.2... 0 links removed | |
| Linking /usr/local/Cellar/bgrep/0.2... 1 symlinks created | |
| Unlinking /usr/local/Cellar/binutils/2.24... 49 links removed |