;; tell the allout-widgets-post-command-business to reestablish the hook:
(setq allout-widgets-reenable-before-change-handler t)
;; and raise an error to prevent the edit (and disable the hook):
;; tell the allout-widgets-post-command-business to reestablish the hook:
(setq allout-widgets-reenable-before-change-handler t)
;; and raise an error to prevent the edit (and disable the hook):