That's okay. Let's have an original repo at for example github.com/alice/bar. Fork it, on github, to your (say you're user bob at github), ie. to github.com/bob/bar. Then:
$ cd $GOPATH/src/github.com/alice
$ git clone https://github.com/bob/bar.git
$ cd bar https://groups.google.com/forum/#!topic/golang-nuts/AL8UyjGl948
git clone git@github.com:you/repo.git $GOPATH/src/github.com/someone/repogo get from original, http://blog.campoy.cat/2014/03/github-and-go-forking-pull-requests-and.html