MC-29722: Default shipping address not being honoured

Author: serhii-balko

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

@@ -306,5 +306,7 @@ public function save(\Magento\Framework\Model\AbstractModel $object)
         if (!$object->isPreventSaving()) {
             return parent::save($object);
         }
+
+        return $this;
     }
 }

app/code/Magento/Sales/Test/Mftf/Test/AdminCreateOrderForCustomerWithTwoAddressesTaxableAndNonTaxableTest.xml

@@ -45,6 +45,10 @@
         </actionGroup>
         <!--Step 2: Select taxable address as billing address-->
         <selectOption selector="{{AdminOrderFormBillingAddressSection.selectAddress}}" userInput="{{US_Address_CA.state}}" stepKey="selectTaxableAddress" />
+        <waitForPageLoad stepKey="waitForChangeBillingAddress"/>
+        <!--Step 3: Set shipping address same as billing -->
+        <checkOption selector="{{AdminOrderFormShippingAddressSection.SameAsBilling}}" stepKey="checkSameAsBillingAddressCheckbox"/>
+        <waitForPageLoad stepKey="waitForChangeShippingAddress"/>
         <!--Step 3: Select FlatRate shipping method-->
         <actionGroup ref="orderSelectFlatRateShipping" stepKey="selectFlatRateShippingMethod"/>
         <!--Step 4: Verify that tax is applied to the order-->