MAGETWO-39069: Payment Method Rendering

app/code/Magento/Checkout/view/frontend/web/js/view/payment/default.js

@@ -105,6 +105,10 @@ define(
 
             getBillingAddressFormName: function() {
                 return 'billing-address-form-' + this.item.code;
+            },
+
+            disposeSubscriptions: function () {
+                // dispose all active subscriptions
             }
         });
     }

app/code/Magento/Checkout/view/frontend/web/js/view/payment/list.js

@@ -110,6 +110,7 @@ define([
             var items = this.getRegion('payment-method-items');
             _.find(items(), function (value) {
                 if (value.item.code === paymentMethodCode) {
+                    value.disposeSubscriptions();
                     this.removeChild(value);
                 }
             }, this);