$entitySubType = !empty($values['case_type_id']) ? $values['case_type_id'] : NULL;
$this->assign('caseTypeID', $entitySubType);
- $groupTree = &CRM_Core_BAO_CustomGroup::getTree('Case',
+ $groupTree = CRM_Core_BAO_CustomGroup::getTree('Case',
$this,
$this->_caseID,
NULL,