"Active port" should override all other ways of changing port

If a signal is wired into a setting, it should always be setting the value of that setting. That's how it works in all circumstances, apart from the active port on a selector.

While the active port is being set to "2," if a value wired into port 0 (A) goes from non-positive to positive (eg. 0 to 1) it will flicker to port 0, and then back to port 2. This is unexpected and unintuitive behaviour. And there's no reason you'd want it to work like this.

It's been reported as a bug for years now, but with no fix unfortunately; maybe it's technically *meant* to work like this, despite it not making sense. So I thought I'd suggest it here as a new feature, or change to the selector...

While the active port is wired into, it should override all other methods of changing port. Inputs to a channel and inputs to next/previous should be completely ignored for the purposes of changing the port.