What does the git option remote.unfuddle.push do?

What 开发者_开发知识库changes will be made if below line is set?

git config remote.unfuddle.push refs/heads/master:refs/heads/master

It will configure your current repository (use the --global switch to perform the config for your current user account). It tells git, that for the remote unfuddle it should only push the master branch.

So git push unfuddle will only push master to the remote repository, even though other branches may exist and might have been updated (and thus pushed with the default configuration)