title: generate:doctrine:crud not work
body: <p>In Symfony 2.8 I generated a simple entity "<em>DemoBundle:Post</em>".<br>
  If I try to recreate the entity with command:</p>
  
  <pre><code>php app/console doctrine:generate:entity 
  </code></pre>
  
  <p>It tell me that </p>
  
  <blockquote>
    <p><em>'Entity "DemoBundle:Post" already exist.'</em></p>
  </blockquote>
  
  <p>But if I try to generate crud with command: </p>
  
  <pre><code>php app/console doctrine:generate:crud 
  </code></pre>
  
  <p>it tell me that </p>
  
  <blockquote>
    <p><em>'Entity "Post" does not exist in the "DemoBundle" bundle.'</em></p>
  </blockquote>
  
  <p>So another stupid think in Symfony?</p>