Implement the suggestion by entrez to avoid "while helpless" in the
reason for the second death if hero gets killed, life-saved, and
killed again at the same time. Life saving sets 'multi' to -1 which
prevents the hero from moving again until next turn and is intended
to make the sequencing of "you survived that attempt on your life"
work if you're being interrupted during some multi-turn activity.
It used to behave differently when the first death occurred while
engaged in some voluntary multi-turn activity. I've removed that
because I couldn't figure out why; it might need to be put back.
47cef18a9b