> How about just providing an extra option on the "choose installation
> type" page: "Re-run failed postinstall scripts", that just jumps
> immediately to that stage, and thereby cleans up any leftovers?
> ISTM that would provide all the same functionality in one nice neat
> package. I'll look at whipping up a patch for consideration.
I'm having a hard time figuring out how control flow works in this thing. I
defined a new app-private WM: