Comparing Dates with dateFormat: 'MM, yy'

Comparing Dates with dateFormat: 'MM, yy'

I'm using this 'Monthpicker' plugin to let users select month/year:  https://github.com/zorab47/jquery.ui.monthpicker


The issue I'm facing is that when the dateFormat is set to 'MM, yy' in the 'From' date field, the till field shows a future date: 2182 in my case. Here's my code:  

$(".resumeExperienceFromYear").monthpicker({
   defaultDate: '-20y',
          yearRange: 'c-60:c',
   changeYear: true,
          changeMonth: true,
          dateFormat: "MM, yy",
   onSelect: function( selected ) {
      $(".resumeExperienceTillYear").monthpicker( "option", "minDate", selected );
   }
});

$(".resumeExperienceTillYear").monthpicker({
          defaultDate: '-60y',
   changeYear: true,
          changeMonth: true,
   onSelect: function( selected ) {
      $(".resumeExperienceFromYear").monthpicker( "option", "maxDate", selected );
   }
});

Would appreciate if someone can help fix this issue.