title: relation many to one between two entities in two bundles symfony
body: <p>I have two entities related with many to one relation but each one belongs to a bundle.
  When forcing the update in the database I get the following error </p>
  
  <pre><code>the target -entity cannot xxxx\Bundle1\Entity be found in xxxx\bundle2\entity
  </code></pre>
  
  <p>Any ideas please??</p>