[18.0][IMP] queue_job: requeue orphaned jobs

[hoangtrann]

This pr add a secondary attempt to requeue "orphaned jobs" where it stucks in enqueued, not yet make it to queue_job_lock and selecting jobs after db initialization also misses it. Even a server restart would not unblock the job.

This is most likely due to server being shutdown or crash during job enqueue. Manually requeue the job on UI make everything running again.