Change to a holidays file that is included in a schedule triggers an infinite loop

Current Situation

• User has multiple schedules which include a holiday file from live folder. example below

  <?xml version="1.0" encoding="ISO-8859-1"?>
  <schedule >
      <weekdays >
          <day  day="1 2 3 4 5">
              <period  single_start="06:30" when_holiday="next_non_holiday"/>
          </day>
      </weekdays>
      <holidays >
          <include  live_file="market_holidays.xml"/>
      </holidays>
  </schedule>
  

• The holiday's file is updated manually or by other job.

  <?xml version="1.0" encoding="iso-8859-1"?>
  <holidays>
     <holiday  date="2018-07-14"/>
     <holiday  date="2018-07-15"/>
     <holiday  date="2018-07-21"/>
     <holiday  date="2018-07-22"/>
     <holiday  date="2018-07-28"/> 
  </holidays>
  

• Ever night when the holiday file is generated, the change in the holiday file force the scheduler to change the schedules to

  .16 18:48:42.953     3 24463.B54854C0 {scheduler} sos::scheduler::include::Has_includes::changed_included_file_info /home/docker/sos-berlin.com/jobscheduler/jobscheduler12/config/live/Ticket#2018081410000023/market_holidays.xml 2018-08-16 16:29:46.000Z, was 2018-08-16 16:48:33.000Z
  

• The update of holidays xml file trigger a infinte loop where every minute the schedules are updated.
• Refer debug log file scheduler.zip ( line number 2892 to 3206)

How to Reproduce

• Deploy the attached example Ticket#2018081410000023.zip in the live folder.
• Open the holiday file, insert a space at end of the file and save it.
• JobScheduler will keep reading the schedules, again and again, every minute.

Desired Behavior

• Change in the holiday file should not start an infinite loop