ENGCOM-1395: [Forwardport] Fix: Datepicker problem when using non en-US locale. #14866

 - Merge Pull Request #14866 from rostyslav-hymon/magento2:2.3-develop-PR-port-14627
 - Merged commits:
   1. 3d5a46a

Author: magento-engcom-team

lib/web/mage/utils/misc.js

@@ -271,7 +271,7 @@ define([
         convertToMomentFormat: function (format) {
             var newFormat;
 
-            newFormat = format.replace(/yy|y/gi, 'YYYY'); // replace the year
+            newFormat = format.replace(/yyyy|yy|y/, 'YYYY'); // replace the year
             newFormat = newFormat.replace(/dd|d/g, 'DD'); // replace the date
 
             return newFormat;