Fix issue in RetrieveObjects when some of the objects is not found.
Fix issue in RetrieveObjects when some of the objects is not found.

When some of the objects was not found, RetrieveObjects stopped sending more objects to outCh until all objects have been retrieved. The retrieved objects were accumulated in the priority queue, and therefore the program worked as expected, but the queue could grow very large.

VirusTotal/vt-cli,VirusTotal/vt-cli