title: Default value in dropdown <select> (symfony)
body: <p>I have this code in the form:</p>
  
  <pre><code>$formShipping-&gt;add('shippingType', EntityType::class, array('mapped' =&gt; false, 'required' =&gt; true,'placeholder' =&gt; 'Select a shipping method', 'label' =&gt; 'Shipping Method', 'class' =&gt; 'BackendBundle\Entity\Shipping', 'choice_label' =&gt; 'shipdesc',
                  'query_builder' =&gt; function (EntityRepository $er) {
                      return $er-&gt;createQueryBuilder('s')
                          -&gt;where('s.active = :active')
                          -&gt;orderBy('s.shipdesc', 'ASC')
                          -&gt;setParameter('active', true);
                  }, 'attr' =&gt; array('class' =&gt; 'form-control')));
  </code></pre>
  
  <p>And this code in twig:</p>
  
  <pre><code>{{ form_row(form.shippingType, {value: "1" })}}
  </code></pre>
  
  <p>But the result is this:</p>
  
  <p><a href="https://i.stack.imgur.com/3e0NV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3e0NV.png" alt="enter image description here"></a></p>
  
  <p>I review with the inspector:</p>
  
  <p><a href="https://i.stack.imgur.com/oUa3U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oUa3U.png" alt="enter image description here"></a></p>
  
  <p>What is the problem??</p>