"Task History" in Jobs View is not displayed when the job name contains a blank

Current Situation

• To get the task history in the Jobs Overview, the JobScheduler has been queried with the request

  ./jobscheduler/master/api/job/{job-path}?return=History&limit=10
  

  since JS-1802.

• If the job name contains a blank character (e.g. hello job) then the request is correct urlencoded

  ./jobscheduler/master/api/job/hello%20job?return=History&limit=10
  

  but the response has always an empty array.

• User can start the job from JOC's action menu e.g. Start Task Immediately
• The task runs successfully but when JOC does not show any Task History entries, see attached screenshot joc-job-taskhistory.png.
• The History --> tasks view show the task history, refer attached screenshot joc-history-taskhistory.png.

How to reproduce

• Create a standalone shell job with space in job name, e.g. "hello job".
• Login to the JOC Cockpit and Start the standalone job.
• The Task will run successfully, but Task History for the job will not be displayed.

Desired Behavior 

• The Task History for a standalone job should be displayed even if the job name contains space.