Major Description
Case 1:
1) Run fetch job via REST API.
2) Send stop job request.
3) Request finished with code 200 and returned string 'false'.
4) Job state changed to "STOPPING" and stopped only after finished all his work.
Case 2:
1) Run fetch job via REST API.
2) Send abort job request.
3) Request finished with code 200 and returned string 'false'.
4) Job state changed to "KILLED", but job continue working and stopped after finished all his work.