title: I forked someone's forked repo. How can I change my repo to go to the original repo?
body: <p>This is what the current situation is...</p>
  
  <p>Repo C is a fork of Repo B</p>
  
  <p>Repo B is a fork of Repo A</p>
  
  <p>Inside Repo C, I worked on a branch that only exists in Repo B.</p>
  
  <p>How can I change github so that Repo C is only a fork of Repo A?</p>