ACP2E-3774: Concurrent Calls to Reorder GraphQL API - Same Products Added to Different Rows

Author: o-dubovyk

app/code/Magento/SalesGraphQl/Test/Unit/Model/Resolver/ReorderTest.php

@@ -77,6 +77,7 @@ public function testResolve(): void
 
         $this->extensionAttributesMock = $this->getMockBuilder(ContextExtensionInterface::class)
             ->disableOriginalConstructor()
+            ->addMethods(['getIsCustomer', 'getStore'])
             ->getMockForAbstractClass();
         $this->extensionAttributesMock->expects($this->once())
             ->method('getIsCustomer')