title: Request in Graph Explorer to list root children returns empty
body: <p>In a OneDrive account I have 14 files and a folder.
  Using Graph Explorer (<a href="https://graph.microsoft.com/v1.0/me/drive/root/" rel="nofollow noreferrer">https://graph.microsoft.com/v1.0/me/drive/root/</a>) I get, at the end of json, these values:</p>
  <pre><code>&quot;folder&quot;: {
      &quot;childCount&quot;: 15
  },
  &quot;root&quot;: {}
  </code></pre>
  <p>but when I try to get the list of files (<a href="https://graph.microsoft.com/v1.0/me/drive/root/children" rel="nofollow noreferrer">https://graph.microsoft.com/v1.0/me/drive/root/children</a>) I get nothing:</p>
  <pre><code>{
  &quot;@odata.context&quot;: &quot;https://graph.microsoft.com/v1.0/$metadata#users('XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX')/drive/root/children&quot;,
  &quot;value&quot;: []}
  </code></pre>
  <p>why? How can I get a list of all files and folders?</p>
  <p>Thanks in advance.</p>