UO Second Age

Should summoned creatures not leave corpses? I can't remember the specific time frame but I swore at one point in early UO, mages would use summon creature to train magery and get leather to GM tailoring.

Is this an era accuracy 'bug' or is there a patch note somewhere that fixes it?

I remember summoned daemon corpses would be corpsed, and they would even give a piece of meat.

If the daemon was casting a spell when it died it would have a scroll on its corpse too!

Bladespirit corpses, I believe, also disappear here when they shouldn't.