title: Git : How to merge the changes from a closed pull request?
body: <p>Few weeks back, I had a pull request (PR) against my branch <code>my:abc</code> from <code>them:xyz</code>.</p>
  
  <p>As of today, the PR is closed.
  In the PR, <code>them:xyz</code> is now replaced with <code>unknown repository</code>, wanted to know what does it mean, how can it happen?</p>
  
  <p>Now I wanted to merge those changes, but unfortunately I cannot contact the other guy to get a new PR (who made the pull request). </p>
  
  <p>But I still have the pull request (which is good).<br>
  Is there any way those changes can be merged or cherry-picked ?</p>
  
  <p>Note : PR belongs to commercial company, so cannot share it here.</p>