Symfony\Component\Form\Field::setData PHP Method

    public function setData($data)
    {
        $this->data = $data;
        $this->normalizedData = $this->normalize($data);
        $this->transformedData = $this->transform($this->normalizedData);
    }

 /**
  * {@inheritDoc}
  */
 public function setData($data)
 {
     if ($this->mode === self::GROUP) {
         parent::setData($data);
     } else {
         Field::setData($data);
     }
 }