Previously if we enabled both UDP and TCP to the same TURN server, the
TCP connection would not work. What happened was that when traffic was
targeted at the TCP connection we would fail to route the traffic to
the right socket due to a too early jump out of the loop searching for
the socket. The search would stop when finding a TURN server matching
the address of the incoming message source. Thus, a UDP TURN server
with the same address as the TCP TURN server would effectively mean
that traffic got routed to a different stun agent that would complain
about receiving responses without matching requests.