My first foray into the wild result-location code was not that pleasant, for the love of whatever deity you believe in add some comments (and/or document how the mechanism works).

to be honest I'm just as scared of that code as you are.

I think how it works is horrible, and doesn't make sense at all.

my only hope right now is to have some kind of shower epiphany when doing the self-hosted implementation, and then backport that to stage1.

this is the third attempt at result location semantics that I've done. the first 2 failed. I'm at the edge of my capabilities and I cannot do any better than this and I need help

dramatics aside, I would be happy to explain more about how it works, to the best of my understanding. but it's not pretty.

also it would only get more complicated with #2761 and #2765

Landed in 93367ad