Thanks, that makes sense, I guess I haven't appreciated the subtleties of the multiple deploy options. I just click it get the "full" deploy I presume.
But I was hoping there was maybe a way to just force a disconnect/reconnect on a single MQTT input node. I've tried to minimize the need for QOS 2 and retained messages, so I end up with multiple MQTT input nodes both to the same server and to different servers.
It is the broker node inside the mqtt node that needs to be restarted. The one where you configure the server and port. You should generally only have one of those for all the mqtt nodes that access that broker. I don't know whether changing its name would force a restart. If it did then all the associated input nodes would be refreshed.