title: Authorization not working for not default guards
body: <p>I have two authenticable model on my Laravel5.2 App. Admin and Client</p>
  
  <p>the default guard set on my app/config.php is admin.</p>
  
  <p>seems that Laravel authorization is not working for my Client model ! it's only working for the default guard (admin)</p>
  
  <p>Also I tried using authorizeForUser method but still no luck.</p>
  
  <p>Please advise.</p>