MAGETWO-44329: Unable to Update Billing Address in Checkout when tax Calculation is Based on Billing Address

Author: Alex Akimov

app/code/Magento/Checkout/view/frontend/web/js/action/set-billing-address.js

@@ -59,6 +59,7 @@ define(
 
                     if (!quote.isVirtual()) {
                         getTotalsAction([]);
+                        fullScreenLoader.stopLoader();
                     } else {
                         deferred = $.Deferred();
                         getPaymentInformationAction(deferred);

app/code/Magento/Checkout/view/frontend/web/js/view/billing-address.js

@@ -115,6 +115,9 @@ define(
             useShippingAddress: function () {
                 if (this.isAddressSameAsShipping()) {
                     selectBillingAddress(quote.shippingAddress());
+                    if (window.checkoutConfig.reloadOnBillingAddress) {
+                        setBillingAddressAction(globalMessageList);
+                    }
                     this.isAddressDetailsVisible(true);
                 } else {
                     lastSelectedBillingAddress = quote.billingAddress();