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: Thu, 30 Jun 2016 21:52:39 +0300 Message-ID: <83bn2iv79k.fsf@gnu.org> References: <83h9cavdgj.fsf@gnu.org> <87poqyy2tc.fsf@metalevel.at> <83d1myv8pg.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1467312862 2083 80.91.229.3 (30 Jun 2016 18:54:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 30 Jun 2016 18:54:22 +0000 (UTC) Cc: 23871@debbugs.gnu.org To: triska@metalevel.at Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Jun 30 20:54:13 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 1bIh6J-000223-Qk for geb-bug-gnu-emacs@m.gmane.org; Thu, 30 Jun 2016 20:54:11 +0200 Original-Received: from localhost ([::1]:52134 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIh6J-0000XD-7X for geb-bug-gnu-emacs@m.gmane.org; Thu, 30 Jun 2016 14:54:11 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:51111) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIh6E-0000Wv-1u for bug-gnu-emacs@gnu.org; Thu, 30 Jun 2016 14:54:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bIh69-0005ih-TQ for bug-gnu-emacs@gnu.org; Thu, 30 Jun 2016 14:54:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:48720) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIh69-0005iW-Q1 for bug-gnu-emacs@gnu.org; Thu, 30 Jun 2016 14:54:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1bIh69-0007S1-KT for bug-gnu-emacs@gnu.org; Thu, 30 Jun 2016 14:54:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 30 Jun 2016 18:54:01 +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=B23871.146731280328598 (code B ref 23871); Thu, 30 Jun 2016 18:54:01 +0000 Original-Received: (at 23871) by debbugs.gnu.org; 30 Jun 2016 18:53:23 +0000 Original-Received: from localhost ([127.0.0.1]:32824 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bIh5X-0007RC-L1 for submit@debbugs.gnu.org; Thu, 30 Jun 2016 14:53:23 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:59968) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bIh5W-0007Qy-4R for 23871@debbugs.gnu.org; Thu, 30 Jun 2016 14:53:22 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bIh5N-0005Pz-U5 for 23871@debbugs.gnu.org; Thu, 30 Jun 2016 14:53:17 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:44099) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIh5N-0005Pv-Qn; Thu, 30 Jun 2016 14:53:13 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:4847 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1bIh5J-0006X8-WE; Thu, 30 Jun 2016 14:53:12 -0400 In-reply-to: <83d1myv8pg.fsf@gnu.org> (message from Eli Zaretskii on Thu, 30 Jun 2016 21:21:31 +0300) 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:120237 Archived-At: > Date: Thu, 30 Jun 2016 21:21:31 +0300 > From: Eli Zaretskii > Cc: 23871@debbugs.gnu.org > > > 2) C-x = immediately after undo confirms this, saying: > > > > point=323 of 322 (EOB) column=0 > > > > While point before undo is point 281 of 322. > > I'm not sure this is not the expected behavior. This means the blank > buffer you see is just the last empty line with EOB. The Emacs > display engine should not normally allow that, it should show the last > line before EOB. The above meant to say that it could be the expected undo behavior, but if so, the display engine probably has some issue in this situation.