title: hook declined to update issue while deleting remote branch
body: <p>I am getting some issue while deleting remote branch (using git).<br>
  I have issued following command:</p>
  
  <pre><code>git push origin :newpdo
  
  remote: Fatal: +refs/heads/newpdo myusername DENIED by fallthru &lt;br&gt;
  remote: error: hook declined to update refs/heads/newpdo &lt;br&gt;
  [remote rejected] newpdo &amp;lt;hook declined &amp;gt; &lt;br&gt;
  error: failed to push some references to 'ssh://myssh path'
  </code></pre>
  
  <p>However, I am not getting any issues while "<code>git push origin pdo</code>"</p>
  
  <p>Am I missing something?</p>
  
  <p><br>Any suggestions?</p>