title: Create synced category and channel
body: <p>If you create a new child channel manually it will be synced to the category; but if I create one with js it's not.</p>
  
  <p>I've spent hours googling and reading docs and I can't find anything.<br>
  This is what I use to create the channel:</p>
  
  <pre><code>message.guild.createChannel("Test", 'text').then(m =&gt; {
    m.setParent(category.id);
  });
  </code></pre>
  
  <p>Manually created:</p>
  
  <p><img src="https://i.stack.imgur.com/yVNOB.png" alt="Synced channel Example"></p>
  
  <p>JS-created:</p>
  
  <p><img src="https://i.stack.imgur.com/mBIeZ.png" alt="Unsynced channel Example"></p>
  
  <p>I can set the permissions manually but I was really hoping to create them synced. </p>