title: Extends template not working with FOSUserBundle emails. Symfony2
body: <p>I have problem with emails and extending a template. I am trying to build one template for emails and then in different Bundles use one template for the emails. I my own bundle I successfully achieve this, but the problems appears when I try to extend FosUserBundle: resetting email.</p>
  
  <p>My template is in app/Resources/views/email_base.html.twig</p>
  
  <pre><code>{% block subject %}{% endblock subject %}
  
  &lt;div dir="ltr" style="display: block; width: 100%; background: #ffffff"&gt;
      &lt;div class="gmail_quote"&gt;
          &lt;div style="margin:0;padding:20px 0; background: #ffffff"&gt;
              &lt;table align="center" bgcolor="#F9F9F9" cellpadding="0" width="600" style="border-spacing:20px 0;color:#4d4d4d;font-family:Arial,Helvetica"&gt;
                  &lt;tbody&gt;
                      TROLLOLOLL
                      {% block body_html %}
  
                      {% endblock body_html %}
                  &lt;/tbody&gt;
              &lt;/table&gt;
              &lt;table align="center" bgcolor="#FFFFFF" width="600" style="margin-top:12px;color:#bdbdbd;font-family:Arial,Helvetica;font-size:11px;text-align:justify"&gt;
                  &lt;tbody&gt;
                      &lt;tr&gt;
                          &lt;td colspan="4" style="padding-top:10px"&gt;
                              This e-mail is intended solely for the addressee, may contain proprietary and legally privileged information. 
                              If you have received this e-mail by mistake please notify the sender and delete this e-mail along with all attachments. 
                              Thank you.
                          &lt;/td&gt;
                      &lt;/tr&gt;
                  &lt;/tbody&gt;
              &lt;/table&gt;
          &lt;/div&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Email which I try to extend with my template is in UserBundle/Resources/views/Resetting/resetting_email.html.twig and looks like:</p>
  
  <pre><code>{% extends '::email_base.html.twig' %}
  
  {% block subject %}Resetting password
  {% endblock %}
  
  {% block body_html %}
      &lt;tr&gt;
          &lt;td colspan=2 style="text-align: left;"&gt;
              &lt;h3&gt;Witaj {{ user.username }}&lt;/h3&gt;
          &lt;/td&gt;
      &lt;/tr&gt;
      &lt;tr&gt;
          &lt;td colspan=2&gt;
              &lt;p&gt;Jeśli chcesz zresetować hasło, kliknij w następujący link &lt;a style="color: #EA2227; text-decoration: underline" href="{{ confirmationUrl }}"&gt;reset hasła&lt;/a&gt;.&lt;/p&gt;
          &lt;/td&gt;
      &lt;/tr&gt;
  {% endblock body_html %}
  </code></pre>
  
  <p>The problem is that when I send this message I can see only the content from resetting_email.html.twig. And there is no content from base_email.html.twig at all.</p>
  
  <p>In my config file i set the template for resetting for my file resetting_email.html.twig:</p>
  
  <pre><code>fos_user:
      db_driver: orm 
      firewall_name: main
      user_class: GL\UserBundle\Entity\User
  
      from_email: 
          address:  development@##########.pl
          sender_name:  Admin ##########
  
      resetting:
          email:
              template:   GLUserBundle:Resetting:resetting_email.html.twig
      service:
          mailer: fos_user.mailer.twig_swift
  </code></pre>