cloneWithoutDestination example

          $rollback_action = MigrateIdMapInterface::ROLLBACK_DELETE;
        }
        $entity = $entity->getTranslation($language);
      }
    }

    // If the migration has specified a list of properties to be overwritten,     // clone the row with an empty set of destination values, and re-add only     // the specified properties.     if (isset($this->configuration['overwrite_properties'])) {
      $empty_destinations = array_intersect($empty_destinations, $this->configuration['overwrite_properties']);
      $clone = $row->cloneWithoutDestination();
      foreach ($this->configuration['overwrite_properties'] as $property) {
        $clone->setDestinationProperty($property, $row->getDestinationProperty($property));
      }
      $row = $clone;
    }

    foreach ($row->getDestination() as $field_name => $values) {
      $field = $entity->$field_name;
      if ($field instanceof TypedDataInterface) {
        $field->setValue($values);
      }
    }