title: Apply Bitbucket pull request as a patch
body: <p>I've got a repo on Bitbucket that only I have write access to.</p>
  
  <p>Someone forked that repo, made changes and issued a pull request to my repo from the fork.</p>
  
  <p>How can I get that pull request as a git patch to apply temporarily to my repo for testing purposes?</p>
  
  <p>The forked repo is private so I can't pull it down, and I wouldn't want to do that anyway.</p>
  
  <p>On GitHub you can simply go to a pull request and add a .patch to the end of the url to download the patch. This doesn't work with Bitbucket.</p>