From 43cfc7427dd2b7dc03633a4dcd6b170cb521ae9c Mon Sep 17 00:00:00 2001
From: Romain Ruaud <romain.ruaud@smile.fr>
Date: Thu, 5 Oct 2017 17:27:00 +0200
Subject: [PATCH] Disable region list when switching to a region optional
 country.

---
 .../Magento/Checkout/view/frontend/web/js/region-updater.js     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/Checkout/view/frontend/web/js/region-updater.js b/app/code/Magento/Checkout/view/frontend/web/js/region-updater.js
index 82033590b1135..79050ca087740 100644
--- a/app/code/Magento/Checkout/view/frontend/web/js/region-updater.js
+++ b/app/code/Magento/Checkout/view/frontend/web/js/region-updater.js
@@ -206,7 +206,7 @@ define([
                     regionInput.removeClass('required-entry');
                 }
 
-                regionList.removeClass('required-entry').hide();
+                regionList.removeClass('required-entry').prop('disabled', 'disabled').hide();
                 regionInput.show();
                 label.attr('for', regionInput.attr('id'));
             }