Issue Summary

An external imported aborted by the system fails to execute successfully on restart

Steps to Reproduce

1. Create an external import
2. Run the import
3. Restart the pod
4. External import is stuck
5. Error in logs 
   Error while resuming system aborted import:SystemAbortedImportBean(id=, importSourceId=, isExecutedForImportSourceOT=, executedForImportSourceIds=[], executedByUserKey=insight-system-user)

Expected Results

Resuming a system aborted external import should complete successfully

Actual Results

External import is stuck. Cannot cancel it if it is not in ingesting state. 
Error while resuming system aborted import:SystemAbortedImportBean(id=, importSourceId=, isExecutedForImportSourceOT=, executedForImportSourceIds=[], executedByUserKey=insight-system-user)

Workaround

The external app can cancel the import if it is in ingesting state. If not, then have to wait for 24hrs so that it gets stale and the app can execute the import again.