Chunk server: fix hello resume logic by always invoking get hosted resume if resume is requested, i.e. resume step is not negative.
Chunk server: fix hello resume logic by always invoking get hosted resume if resume is requested, i.e. resume step is not negative.

quantcast/qfs,quantcast/qfs,quantcast/qfs,quantcast/qfs,quantcast/qfs,quantcast/qfs,quantcast/qfs,quantcast/qfs