title: Error summary not shown in CActiveForm - Yii
body: <p>Below i am using <code>CActiveForm</code> to render a form with multiple instances of same model. On submitting the form, ajax validation error for individual attributes are shown but <code>error summary</code> is not shown. What could be the possible problem? Thanks a lot</p>
  
  <pre><code>&lt;?php 
      $form=$this-&gt;beginWidget('CActiveForm', array(
          'id'=&gt;'task-form',
          'enableClientValidation'=&gt;false,
          'enableAjaxValidation' =&gt;true,
          'clientOptions'=&gt;array(
              'validateOnSubmit'=&gt;true,
              'validateOnChange'=&gt;false,
          ),
      )); 
      Yii::app()-&gt;session['form'] = $form;
      ?&gt;
  
      &lt;?php echo $form-&gt;errorSummary($models); ?&gt; 
  
      &lt;ul class="tasks"&gt;
          &lt;?php foreach($models as $index=&gt;$model): ?&gt;
              &lt;?php $this-&gt;renderPartial('_task', array(
                  'model' =&gt; $model,
                  'index' =&gt; $index,
                  'form' =&gt; $form,
              )); ?&gt;
          &lt;?php endforeach; ?&gt;
      &lt;/ul&gt;
  
      &lt;div class="row buttons"&gt;
          &lt;?php echo CHtml::submitButton('Save')?&gt;
      &lt;/div&gt;
  
      &lt;?php $this-&gt;endWidget(); ?&gt;
  &lt;/div&gt;
  </code></pre>