PUB/SUB connection loss with TIME_WAIT state on PUB

We are running into another issue with PUB/SUB breakages where subscribers are loosing connection. In a nutshell when a subscriber losses connection then there seems to be a TIME_WAIT state on the tcp connection on the PUB end and messages are not getting through.

This is only being reported by a single Salt user at this point, and the discussion can be found here:
https://github.com/saltstack/salt/issues/5599#issuecomment-22012970

At least this is where I think we are finally getting to some meat.