ENGCOM-4234: [Backport] Solved swagger response of product attribute option is_default #21164

 - Merge Pull Request #21164 from mage2pratik/magento2:2.2-develop-PR-port-20913
 - Merged commits:
   1. 11cafc3
   2. c1f3f36
   3. 7b8ec80

Author: magento-engcom-team

app/code/Magento/Ui/view/base/web/js/form/element/country.js

@@ -49,7 +49,7 @@ define([
 
             if (!this.value()) {
                 defaultCountry = _.filter(result, function (item) {
-                    return item['is_default'] && item['is_default'].includes(value);
+                    return item['is_default'] && _.contains(item['is_default'], value);
                 });
 
                 if (defaultCountry.length) {