Currently the isSelf command will only consider a given hostname as the local machine if it's corresponding IP address exactly matches one of the IP addresses the process is listening to. If the given hostname maps to some address in the 127.0.0.1/8 range that is not 127.0.0.1, though, it will not consider this as pointing to the loopback and will bypass this fast path. We should allow it to consider any host address in this range as mapping to the loopback.