title: Group exclusion in Nelmio Api Doc does not work After updating composer
body: <p>I set up a parameter as array, as described in <a href="http://jmsyst.com/libs/serializer/master/reference/annotations">http://jmsyst.com/libs/serializer/master/reference/annotations</a></p>
  
  <pre><code>class QuestionAnswer
  {
      /**
     * @JMS\Type("ArrayCollection&lt;Rest\Bundle\Entity\Fixture\QuestionOptions&gt;")
       * @Groups({"QuestionAnswer"})
     */
        public $question_options_array ;
  }
  </code></pre>
  
  <p>and define some options in another class</p>
  
  <pre><code>class QuestionOptions
  {
      /**
         * @JMS\Type("integer")
         * @Groups({"get_option"})
         */
        public $question_option_id ;
  
        /**
         * @JMS\Type("string")
         * @Groups({"post_option"})
         */
        public $question_option_description;
  }
  </code></pre>
  
  <p>In @ApiDoc I define </p>
  
  <pre><code>     * input={
       *      "class" = "Rest\BeautyBundle\Entity\Fixture\ProfileQuestionAnswer", 
       *      "groups"={"QuestionAnswer", "get_option"},
       *  },
  </code></pre>
  
  <p>Before updating it works well. But after <code>composer update</code> only the "QuestionAnswer" group name works and it shows all properties from QuestionOptions class.
  How can I submit properties in the array the way it was before the update?</p>