ACP2E-279: Customer details are lost after editing an order.

Author: glo23503

app/code/Magento/Sales/Model/AdminOrder/Create.php

@@ -1984,6 +1984,9 @@ public function createOrder()
         $orderData = [];
         if ($this->getSession()->getOrder()->getId()) {
             $oldOrder = $this->getSession()->getOrder();
+            $quote->setCustomerFirstname($oldOrder->getCustomerFirstname());
+            $quote->setCustomerMiddlename($oldOrder->getCustomerMiddlename());
+            $quote->setCustomerLastname($oldOrder->getCustomerLastname());
             $originalId = $oldOrder->getOriginalIncrementId();
             if (!$originalId) {
                 $originalId = $oldOrder->getIncrementId();
@@ -2005,10 +2008,6 @@ public function createOrder()
             $oldOrder->setRelationChildRealId($order->getIncrementId());
             $oldOrder->save();
             if ($order->getCustomerIsGuest()) {
-                $quote->setCustomerFirstname($oldOrder->getCustomerFirstname());
-                $quote->setCustomerMiddlename($oldOrder->getCustomerMiddlename());
-                $quote->setCustomerLastname($oldOrder->getCustomerLastname());
-                $quote->save();
                 $order->setCustomerFirstname($oldOrder->getCustomerFirstname());
                 $order->setCustomerMiddlename($oldOrder->getCustomerMiddlename());
                 $order->setCustomerLastname($oldOrder->getCustomerLastname());