I've hated that ing auto-zoom since the start. Posted asking about it, last night, went ahead and looked into it myself when got bored of waiting the few hours I waited with the one negative comment to it.
So... Because it is ing annoying to me, here's how to shut it off.
In variables.txt change these items to the same value. Adjust values down to always be zoomed out further by default, up to be zoomed in further
[zoomStop:old:0.85]
0.55
[zoomMove:old:0.6:orig:0.5:toobig:0.55]
0.55