JobScheduler hangs with error SCHEDULER-188 Order.setback() and Order.state= cannot be combined

Current Situation

• the JITL job JobSchedulerExistsFile is executed on an Agent; the Job is configured to move the order to end state Success. by parameter on_empty_result_set=succes
• If no matching file is found, the order is moved to the end state success and JobScheduler hangs with the error message ERROR SCHEDULER-188 Order.setback() and Order.state= cannot be combined

  
  .27 09:48:55.632   270 31197.AB5004C0 [ERROR SCHEDULER-188  Order.setback() and Order.state= cannot be combined [Order support/Ticket2018062610000013/fzz2:fzz3]]
  .27 09:48:55.648    16 31197.AB5004C0 [ERROR SCHEDULER-188  Order.setback() and Order.state= cannot be combined [Order support/Ticket2018062610000013/fzz2:fzz3]]
  .27 09:48:55.648     0 31197.AB5004C0 [ERROR SCHEDULER-188  Order.setback() and Order.state= cannot be combined [Order support/Ticket2018062610000013/fzz2:fzz3]]
  .27 09:48:55.649     1 31197.AB5004C0 (Letzte Zeile wiederholt sich 2 mal)
  .27 09:48:55.649     0 31197.AB5004C0 [ERROR SCHEDULER-191  separate_process: Unexpected state _operation==NULL in step__end]
  .27 09:48:55.650     1 31197.AB5004C0 [ERROR SCHEDULER-191  separate_process: Unexpected state _operation==NULL in step__end]
  .27 09:48:55.650     0 31197.AB5004C0 [ERROR SCHEDULER-188  Order.setback() and Order.state= cannot be combined [Order support/Ticket2018062610000013/fzz2:fzz3]]
  .27 09:48:55.650     0 31197.AB5004C0 [ERROR SCHEDULER-188  Order.setback() and Order.state= cannot be combined [Order support/Ticket2018062610000013/fzz2:fzz3]]
  .27 09:48:55.651     1 31197.AB5004C0 [ERROR SCHEDULER-188  Order.setback() and Order.state= cannot be combined [Order support/Ticket2018062610000013/fzz2:fzz3]]
  

Desired situation

• JobScheduler should not hang when an order is moved to the end node

Workaround

• Add a dummy Full node, e.g., dummy_success, before the actual End Node Success and if not files are found, configure JITL job JobSchedulerExistsFile, to move the order to dumm_succes.