title: Error when resetting password with fosuserbundle
body: <p>I am using Symfony2 and Fosuserbundle on my website.
  But I have a problem when I want to reset my password.</p>
  
  <ol>
  <li>When I go to the /resetting/request page I first put my email.</li>
  <li>I receive an email with a link</li>
  <li>When I click at this link I can see a form with only the new password and a confirmation</li>
  <li>When I put the new password and the confirmation I receive this error message :</li>
  </ol>
  
  <blockquote>
    <p>The lastname is required.</p>
  </blockquote>
  
  <p>I didn't override the formtype or the controller, I just overrode the view like this on
  reset_content.html.twig</p>
  
  <pre><code>{% trans_default_domain 'FOSUserBundle' %}
  
  &lt;form action="{{ path('fos_user_resetting_reset', {'token': token}) }}" {{ form_enctype(form) }} method="POST" class="fos_user_resetting_reset"&gt;
  
      {{ form_widget(form) }}
  
      &lt;div&gt;
          &lt;input class="btn btn-success" type="submit" value="{{ 'resetting.reset.submit'|trans }}" /&gt;
      &lt;/div&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>What can I do to solve this problem ?</p>
  
  <p>Thanks,</p>