MC-17003: Update Totals button is missing from Credit Memo page

Author: DianaRusin

app/code/Magento/Sales/Test/Mftf/ActionGroup/AdminOpenAndFillCreditMemoRefundActionGroup.xml

@@ -34,6 +34,7 @@
         <fillField userInput="{{shippingRefund}}" selector="{{AdminCreditMemoTotalSection.refundShipping}}" stepKey="fillShipping"/>
         <fillField userInput="{{adjustmentRefund}}" selector="{{AdminCreditMemoTotalSection.adjustmentRefund}}" stepKey="fillAdjustmentRefund"/>
         <fillField userInput="{{adjustmentFee}}" selector="{{AdminCreditMemoTotalSection.adjustmentFee}}" stepKey="fillAdjustmentFee"/>
+        <waitForElementVisible selector="{{AdminCreditMemoTotalSection.updateTotals}}" stepKey="waitForUpdateTotalsButton"/>
         <click selector="{{AdminCreditMemoTotalSection.updateTotals}}" stepKey="clickUpdateTotals"/>
         <checkOption selector="{{AdminCreditMemoTotalSection.emailCopy}}" stepKey="checkSendEmailCopy"/>
     </actionGroup>

app/code/Magento/Sales/view/adminhtml/layout/sales_order_creditmemo_new.xml

@@ -17,7 +17,7 @@
                         <container name="extra_customer_info"/>
                     </block>
                     <block class="Magento\Sales\Block\Adminhtml\Order\Payment" name="order_payment"/>
-                    <block class="Magento\Sales\Block\Adminhtml\Order\Creditmemo\Create\Items" name="order_items" template="Magento_Sales::order/creditmemo/create/items.phtml" cacheable="false">
+                    <block class="Magento\Sales\Block\Adminhtml\Order\Creditmemo\Create\Items" name="order_items" template="Magento_Sales::order/creditmemo/create/items.phtml">
                         <arguments>
                             <argument name="viewModel" xsi:type="object">Magento\Sales\ViewModel\CreditMemo\Create\UpdateTotalsButton</argument>
                         </arguments>