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From: Andreas Politz <politza@hochschule-trier.de>
To: 26061@debbugs.gnu.org
Subject: bug#26061: 26.0.50; cancel-change-group fails with "unrelated state" error if used after an undo
Date: Sat, 11 Mar 2017 19:01:28 +0100	[thread overview]
Message-ID: <87wpbvwv47.fsf@luca> (raw)


Save the following in some file foo.el:

#+BEGIN_SRC emacs-lisp
(defun bug ()
  (interactive)
  (catch 'done
    (atomic-change-group
      (insert "bug")
      (throw 'done nil))))

(setq debug-on-error t)
(switch-to-buffer (get-buffer-create "*bug*"))
(setq unread-command-events
      (list
       ;; insert abc
       ?a ?b ?c
       ;; undo once
       ?\C-/
       ;; call bug
       ?\M-x ?b ?u ?g ?\C-j))
#+END_SRC

, then start Emacs like this:

$ emacs -Q -l foo.el

Debugger entered--Lisp error: (error "Undoing to some unrelated state")
  signal(error ("Undoing to some unrelated state"))
  error("Undoing to some unrelated state")
  cancel-change-group(((#<buffer *bug*> nil)))

--

-ap





             reply	other threads:[~2017-03-11 18:01 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-11 18:01 Andreas Politz [this message]
2019-11-21  9:53 ` bug#26061: Consider merging with 26287 and 34405 Braun Gábor
2019-11-21 11:47   ` Lars Ingebrigtsen

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