I can't be sure obviously, but if it's done once by the installer, there's no reason to assume it won't ever do it again. So in the worst case, you'll have to r

I can't be sure obviously, but if it's done once by the installer, there's no reason to assume it won't ever do it again. So in the worst case, you'll have to re-chown every time you install an update. Or you don't chown and run brew as root.