Questions about error status of the jobs in JobSandbox

[Jacopo Cappellato]

I'm not completely sure, but it seems to me that the jobs in the 
JobSandbox entity (i.e. service jobs submitted with an runAsync call), 
always end their life in the "Finished" status, even if the service 
returned an error.
Is it possible? Is this by design or there is a bug somewhere and they 
should be moved to the "Failed" or "Crashed" status?

Jacopo