protected function _associateMasterCollectionAttributes($newCID, $masterCID)
    {
        $mc = self::getByID($masterCID, 'ACTIVE');
        $nc = self::getByID($newCID, 'RECENT');
        $attributes = CollectionKey::getAttributeValues($mc);
        foreach($attributes as $attribute) {
            $value = $attribute->getValueObject();
            if ($value) {
                $value = clone $value;
                $nc->setAttribute($attribute->getAttributeKey(), $value);
            }
        }
    }