ACP2E-2055: Duplicate orders with same Quote Id at same time with few time difference

Author: viktym

app/code/Magento/Quote/Model/QuoteManagement.php

@@ -544,11 +544,7 @@ protected function submitQuote(QuoteEntity $quote, $orderData = [])
         $order = $this->orderFactory->create();
         $this->submitQuoteValidator->validateQuote($quote);
         if (!$quote->getCustomerIsGuest()) {
-            if ($quote->getCustomerId()) {
-                $this->_prepareCustomerQuote($quote);
-                $this->customerManagement->validateAddresses($quote);
-            }
-            $this->customerManagement->populateCustomerInfo($quote);
+            $this->prepareCustomerQuote($quote);
         }
         $addresses = [];
         $quote->reserveOrderId();
@@ -780,4 +776,22 @@ public function _resetState(): void
     {
         $this->addressesToSync = [];
     }
+
+    /**
+     * Prepare customer quote.
+     *
+     * @param Quote $quote
+     * @return void
+     * @throws LocalizedException
+     * @throws NoSuchEntityException
+     * @throws ValidatorException
+     */
+    private function prepareCustomerQuote(Quote $quote): void
+    {
+        if ($quote->getCustomerId()) {
+            $this->_prepareCustomerQuote($quote);
+            $this->customerManagement->validateAddresses($quote);
+        }
+        $this->customerManagement->populateCustomerInfo($quote);
+    }
 }

app/code/Magento/Quote/Test/Unit/Model/QuoteManagementTest.php

@@ -837,7 +837,7 @@ public function testSubmit(): void
                     ['order' => $order, 'quote' => $quote]
                 ]
             );
-        $this->lockManagerMock->method('isLocked')->willReturn(false);
+        $this->lockManagerMock->method('lock')->willReturn(true);
         $this->quoteRepositoryMock->expects($this->once())->method('save')->with($quote);
         $this->assertEquals($order, $this->model->submit($quote, $orderData));
     }
@@ -1311,6 +1311,7 @@ public function testSubmitForCustomer(): void
             false
         );
 
+        $this->lockManagerMock->method('lock')->willReturn(true);
         $this->submitQuoteValidator->method('validateQuote')
             ->with($quote);
         $this->quoteAddressToOrder->expects($this->once())