/**
* Check is review visibility was changed
*
* @param Mage_Review_Model_Review $review
* @return bool
*/
protected function _isChangedReviewVisibility($review)
{
return $review->getData('status_id') == Mage_Review_Model_Review::STATUS_APPROVED || $review->getData('status_id') != Mage_Review_Model_Review::STATUS_APPROVED && $review->getOrigData('status_id') == Mage_Review_Model_Review::STATUS_APPROVED;
}