code: protected function handleInsert(SaleInterface $sale)
      {
          $changed = $this->fixCustomers($sale);
  
          $changed |= $this->setIsFirst($sale);
  
          $changed |= parent::handleInsert($sale);
  
          $changed |= $this->updateExchangeRate($sale);
  
          $changed |= $this->updateLocale($sale);
  
          return $changed;
      }
docs: @inheritDoc
  
  @param OrderInterface $sale