Fix for verify_network with incomplete data

verify_networks_resp fails with
UnboundLocalError: local variable 'received_network' referenced before assignment
if network data on first node is empty, if it is empty on second
received_network of previous node will be used..

Use data from cached_network cause received_network should be mirror of cached_networki
but it isn't in case of errors

Change-Id: I636e6f218650f844b5872b5a1d8621787abac956
Merge "Fix for verify_network with incomplete data"