ACP2E-693: Addresses disappear from multi-shipping checkout after removing several items.

Author: pradeep1819

app/code/Magento/Multishipping/Test/Mftf/Test/StoreFrontRemoveItemFromMultishipmentCartTest.xml

@@ -80,7 +80,7 @@
         <waitForPageLoad time="30"  stepKey="waitForCartSummaryPageToLoadAfterRemovalOfSecondItem"/>
         <!-- Verify there are 1 items still available after removal of second -->
         <seeNumberOfElements userInput="1" selector="a.action.delete" stepKey="seeOneItems"/>
-        <!-- Remove second simple item from cart -->
+        <!-- Remove third simple item from cart -->
         <actionGroup ref="StorefrontRemoveProductOnCheckoutActionGroup" stepKey="removeThirdItemFromCart"/>
         <waitForPageLoad time="30"  stepKey="waitForCartSummaryPageToLoadAfterRemovalOfTestItem"/>
     </test>

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

@@ -2683,7 +2683,7 @@ private function getQuoteShippingAddressItemsByQuoteItemId(int $itemId): array
                     if ($item->getParentItemId() || $item->getProduct()->getIsVirtual()) {
                         continue;
                     }
-                    if ($item->getQuoteItemId() === $itemId) {
+                    if ((int)$item->getQuoteItemId() === $itemId) {
                         $addressItems[] = $item;
                     }
                 }