title: FOSUserBundle redirect from login page after logged in
body: <p>I simply want that if admin user or front end user try to access login page even after logged in</p>
  
  <pre><code>/admin/login (admin user) 
  </code></pre>
  
  <p>OR</p>
  
  <pre><code>/login (front end user)
  </code></pre>
  
  <p>then they should be redirected back to their related home page like <code>/admin</code> or <code>/</code></p>