title: Is the list subscription functionality broken?
body: <p>I have ran into an issue with trying to retrieve active subscriptions for a user. Been able to create the subscription and receive updates, but when I try to make a get request to the <code>/subscriptions</code> endpoint using the valid <code>access_token</code> I have for the user, nothing is returned (empty array).</p>
  
  <p>All of these subscriptions have been made via the beta API, which is what I am pinging to retrieve the active subs.</p>
  
  <p>Been using these docs for reference:
  <a href="https://developer.microsoft.com/en-us/graph/docs/api-reference/beta/api/subscription_list" rel="nofollow noreferrer">https://developer.microsoft.com/en-us/graph/docs/api-reference/beta/api/subscription_list</a></p>