JOC Cockpit should not throw an error if a substitute is added to a Schedule

Current Situation

• When a user tries to add a substitute from the action menu of a Schedule and if the substitute schedule does not exist then it throws the error:

  JOC-400
  JobSchedulerBadRequestException: SCHEDULER-161 There is no schedule
  

• With the release older than 1.13.3 if the substitute is added to the schedule and if that schedule does not exist then it creates a new schedule. The API response with the older release is:

  {"jobschedulerId":"js-132","schedule":"/example-new/schedule-new","runTime":"<schedule valid_from='2020-12-09 00:00:00' valid_to='2020-12-23 00:00:00' name='schedule-new' substitute='/examples/20_SchedulingJobChains/WeeklySchedule'/>","calendars":[],"auditLog":{}}
  

• The API response with the newer version from 1.13.3 which generates the error instead of creating the schedule is:

  {"jobschedulerId":"js137","schedule":"/example-new/schedule-new","runTime":{"configurationDate":"2017-02-02T09:14:57Z","name":"schedule-new","path":"/examples/20_SchedulingJobChains/MonthlySchedule","surveyDate":"2020-12-09T08:59:10.984Z","usedByOrders":[{"jobChain":"/examples/20_SchedulingJobChains/01_JobChainMonthly","orderId":"MonthlyOrder"}],"state":{"_text":"ACTIVE","severity":0},"path1":"/examples/20_SchedulingJobChains","validFrom":"2020-12-09 00:00:00","validTo":"2020-12-23 00:00:00"},"calendars":[],"auditLog":{}}
  

How to reproduce

• Click on the action menu of any schedule and select Add Substitute
• Add a folder name that does not exist
• Select the dates and click on the submit button
• The JOC Cockpit throws error JOC -400
  JobSchedulerBadRequestException: SCHEDULER-161 There is no schedule

Desired Behavior

• The JOC Cockpit should not throw an error when a substitute is added to the Schedule and the schedule does not exist.