title: Doctrine ODM Distinct With Limit
body: <p>I have the following problem: I can't limit number of results when using distinct. Exemple :</p>
  
  <pre><code>$stores = $this-&gt;dm-&gt;createQueryBuilder('Application\Document\Item')
     -&gt;distinct('storeName')
     -&gt;limit(10)
     -&gt;getQuery()
     -&gt;execute();
  </code></pre>
  
  <p>This query render 100 entries but I want only 10 results.</p>