title: Symfony: Why the isInitialized always is false?
body: <p>I used doctrine query a user:</p>
  
  <pre><code>$customer = $this-&gt;getDoctrine()-&gt;getRepository('DemoUserBundle:Customer')-&gt;find(1);
  </code></pre>
  
  <p>But i got the result:</p>
  
  <blockquote>
    <p>Customer {#1441 ▼
      +<strong>isInitialized</strong>: false
      -id: 1
      -username: null
      -nickname: null
      -email: null
      -salt: null
      -password: null
      -roles: null
      -enabled: null
      -lastLogin: null
      -expired: null
      -expiredAt: null
      -created: null
      -modified: null
      -group: null
      -ceilphoneCode: null
      -avatar: null
      -tasks: null
      -applications: null
      -companies: null
      -creators: null
      -images: null
      -company: null
      -store: Store {#1440 ▶}
      -realName: null
      -sex: null
      -age: null
      -belongCompany: null
      -address: null
      -career: null
      -relationProducts: null
      -attributes: null
      -medias: null
      -logs: null
       …2
    }</p>
  </blockquote>
  
  <p>the result is not completed, where are other data of this user? why the isInitialized is false?</p>