title: Cloning empty repository
body: <p>I'm trying to clone my Heroku repository, but when I run     </p>
  
  <p><code>heroku git:clone -a myservername</code>    </p>
  
  <p>I get the error:   </p>
  
  <blockquote>
    <p>warning: You appear to have cloned an empty repository.      </p>
  </blockquote>