No subject

What needs to happen is the RPMs from the secondary hub need to be
copied to the primary in the correct NVR directories in the hub's
storage.  That can happen in the background for quite a bit, but at
some point the hub would need to be taken offline to sync up the last
few builds, and then switch the builders over.

Having a staging hub just means you have to copy and move the builders
twice.  This is mostly due to how koji builders can only talk to one
hub at a time and one hub only.

josh