title: Getting access to unmapped form fields in twig (Symfony 2.3)
body: <p>I have form with hidden unmapped field:</p>
  
  <pre><code>public function buildForm(FormBuilderInterface $builder, array $options)
      {
          ...
          $builder
              ...
              ...
              -&gt;add(
                  'geolocationBreadcrumbs',
                  'hidden',
                  array(
                      'required' =&gt; false,
                      'mapped' =&gt; false
                  )
              );
      }
  </code></pre>
  
  <p>I want to get access to value of that field in TWIG via {{ form.vars.value.field_name }}</p>
  
  <pre><code>&lt;div&gt;{{ form.vars.value.geolocationBreadcrumbs }}&lt;/div&gt;
  </code></pre>
  
  <p>But I have an error: Method "geolocationBreadcrumbs" for object "Site\UserBundle\Entity\User" does not exist in "%path_to_twig_template%"</p>
  
  <p>Why does Symfony 2.3 try to find method for unmapped field in Entity Class and how I can to get access to unmapped filed value direclty from twig?</p>
  
  <p>Thanks.</p>