protected function mergeExistingRecord(Record $record, DataDimensions $dataDimensions)
 {
     if ($record->getID() != '') {
         $existingRecord = $this->getMultiViewRecord($record->getId(), $record->getContentTypeName(), $dataDimensions);
         if ($existingRecord) {
             $record->setRevision($existingRecord->getRevision());
             $existingProperties = $existingRecord->getProperties();
             $mergedProperties = array_merge($existingProperties, $record->getProperties());
             $mergedRecord = clone $record;
             $mergedRecord->setProperties($mergedProperties);
             return $mergedRecord;
         }
     }
     return $record;
 }