broker doesnt handle server-connection being severed

The broker doesnt notice or handle a server-connection being severed / timing out.

Start a broker, having instructed it to connect to a router (i.e 'peer' configuration). Stop the router (CTRL-C). Start the router again. Broker doesnt seem to notice the server-connection is gone and doesnt reconnect. It actually sits generating heartbeat frames until its 60sec actual-timeout is reached...at which point proton generates a close frame indicating the timeout. The broker still doesnt notice the connection is gone, and still doesnt reconnect.