fixed invalid date issue

Author: satyacedcoss

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

@@ -125,7 +125,9 @@ define([
 
                     shiftedValue = moment(value, dateFormat);
                 }
-
+                if(!shiftedValue.isValid()){
+                    shiftedValue = moment(value,this.inputDateFormat);
+                }
                 shiftedValue = shiftedValue.format(this.pickerDateTimeFormat);
             } else {
                 shiftedValue = '';