The scenario I've seen was that warp() calls imove() which calls
srawmaps(), which leaves the lrscan_window active. When nova kills
you, all the game status was dumped to lrscan_window, and the
question "play again?" in that window was effectively a lock-up.
But I haven't tested the fact that the problem is really no longer
happens.
newcnd();
iattak = 0;
drawmaps(0);
+ setwnd(message_window);
return;
}