Patch-Magento_Ui-M2.1.9-country-select-extra-empty-option.patch

--- view/base/web/js/form/element/select.orig.js	2017-09-13 14:07:52.000000000 +0300
+++ view/base/web/js/form/element/select.js	2017-10-05 17:33:23.989687047 +0300
@@ -44,9 +44,9 @@
                 if (_.isUndefined(caption)) {
                     caption = node.label;
                 }
+            } else {
+                return node;
             }
-
-            return node;
         });
 
         return {