That little ******* is the ONLY thing that has resulted in me being stranded in any of my IDI's.
That's why I changed stuff around;
I used an aftermarket parts house ignition switch to replace the stocker, then a string of rocker switches for various things including manual glow plug button, manual starter switch, manual high idle, and manual cold start advance. All of the switches are powered by the ignition circuit, so none of them work unless the ignition switch is turned on. The stock ignition switch is still there, but completely useless.