title: django.middleware.csrf.get_token() usage
body: <p>Consider the following scenario: the page is loaded with <code>{% csrf_token %}</code> in the <code>&lt;form&gt;</code>. Later the submissions of this form (including the hidden csrf_token) are performed using ajax (post) without reloading the page.<br>
  On the server side as I understand the token should be sent back to client and replace the one which is in the <code>&lt;form&gt;</code>, because the token can be renewed depending on its' lifespan (by the way, when the token is regenerated?)<br>
  To get the token and send with response I'm thinking on using the django.middleware.csrf.get_token(), but in the code it seems that it will just return the one which was sent from client.<br>
  So will the get_token() return the up to date one?  </p>