jde/setnu.el

IN 21.1.13 xemacs, jde/setnu.el. I do (find-file " (require 'setnu) (setnu-mode) When I try to kill-line, I get the following: Signaling: (wrong-type-argument extentp nil) setnu-set-extent-property(nil setnu-next-extent #<extent [13121, 13121) setnu 0x36ade5c in buffer setnu.el<2>>) setnu-extent-at-create(13121 nil) setnu-before-change-function(13121 13122) kill-region(13121 13122) kill-line(nil) call-interactively(kill-line) BTW, it seems like jde is the wrong place for this file? Wouldn't text-modes or something be more appropriate? -jeff