From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#23871: 25.1.50; Undo unexpectedly leads to blank buffer Date: Fri, 01 Jul 2016 10:25:44 +0300 Message-ID: <834m89vmyv.fsf@gnu.org> References: <83h9cavdgj.fsf@gnu.org> <87poqyy2tc.fsf@metalevel.at> <87vb0qqrkz.fsf@russet.org.uk> <87h9c9zx75.fsf@metalevel.at> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1467358045 25271 80.91.229.3 (1 Jul 2016 07:27:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 1 Jul 2016 07:27:25 +0000 (UTC) Cc: 23871@debbugs.gnu.org, phillip.lord@russet.org.uk To: Markus Triska Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jul 01 09:27:13 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bIsr0-0001p6-7h for geb-bug-gnu-emacs@m.gmane.org; Fri, 01 Jul 2016 09:27:10 +0200 Original-Received: from localhost ([::1]:54247 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIsqz-0003xF-5a for geb-bug-gnu-emacs@m.gmane.org; Fri, 01 Jul 2016 03:27:09 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48948) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIsqt-0003xA-Ti for bug-gnu-emacs@gnu.org; Fri, 01 Jul 2016 03:27:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bIsqs-0005BM-KS for bug-gnu-emacs@gnu.org; Fri, 01 Jul 2016 03:27:03 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:49033) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIsqs-0005BH-Go for bug-gnu-emacs@gnu.org; Fri, 01 Jul 2016 03:27:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1bIsqs-0000j4-CK for bug-gnu-emacs@gnu.org; Fri, 01 Jul 2016 03:27:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 01 Jul 2016 07:27:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 23871 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 23871-submit@debbugs.gnu.org id=B23871.14673579722647 (code B ref 23871); Fri, 01 Jul 2016 07:27:02 +0000 Original-Received: (at 23871) by debbugs.gnu.org; 1 Jul 2016 07:26:12 +0000 Original-Received: from localhost ([127.0.0.1]:33137 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bIsq4-0000gd-Av for submit@debbugs.gnu.org; Fri, 01 Jul 2016 03:26:12 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:55868) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bIsq3-0000gF-9d for 23871@debbugs.gnu.org; Fri, 01 Jul 2016 03:26:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bIspu-0004f0-Pr for 23871@debbugs.gnu.org; Fri, 01 Jul 2016 03:26:06 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:53644) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIspu-0004e7-Mk; Fri, 01 Jul 2016 03:26:02 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1298 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1bIsps-00070g-Ru; Fri, 01 Jul 2016 03:26:01 -0400 In-reply-to: <87h9c9zx75.fsf@metalevel.at> (message from Markus Triska on Fri, 01 Jul 2016 08:31:10 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:120255 Archived-At: > From: Markus Triska > Cc: Eli Zaretskii , 23871@debbugs.gnu.org > Date: Fri, 01 Jul 2016 08:31:10 +0200 > > phillip.lord@russet.org.uk (Phillip Lord) writes: > > > I believe the following patch fixes #21722. > > I tried it, and can still reproduce both #21722 and #23871 also with the > patch applied to the current emacs-25 branch. Which doesn't surprise me, since point is at the insertion position just before the insertion, which is when record_insert is called, AFAIU. I think the question here is why does undo record the position of point at the end of the sexp, and not where point was when C-M-x was invoked. This has something to do with code that runs off C-M-x, I presume.