From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#21523: 25.0.50; Undo with active region adds extra text Date: Mon, 16 Aug 2021 16:13:26 +0300 Message-ID: <83eeat8rd5.fsf@gnu.org> References: <48592862-1630-4c61-aeed-1e3b720824de@default> <87czqdd0ng.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8209"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 21523@debbugs.gnu.org To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Aug 16 15:14:19 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mFcRW-0001tL-Na for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 16 Aug 2021 15:14:18 +0200 Original-Received: from localhost ([::1]:34904 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mFcRV-0006Dj-HJ for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 16 Aug 2021 09:14:17 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46304) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mFcRG-0006AH-Fj for bug-gnu-emacs@gnu.org; Mon, 16 Aug 2021 09:14:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:37421) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mFcRG-00083T-9P for bug-gnu-emacs@gnu.org; Mon, 16 Aug 2021 09:14:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mFcRG-0004zE-0d for bug-gnu-emacs@gnu.org; Mon, 16 Aug 2021 09:14:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 16 Aug 2021 13:14:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 21523 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: confirmed Original-Received: via spool by 21523-submit@debbugs.gnu.org id=B21523.162911962619138 (code B ref 21523); Mon, 16 Aug 2021 13:14:01 +0000 Original-Received: (at 21523) by debbugs.gnu.org; 16 Aug 2021 13:13:46 +0000 Original-Received: from localhost ([127.0.0.1]:48967 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mFcQw-0004yX-I4 for submit@debbugs.gnu.org; Mon, 16 Aug 2021 09:13:46 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:58000) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mFcQr-0004yI-53 for 21523@debbugs.gnu.org; Mon, 16 Aug 2021 09:13:41 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:47544) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mFcQl-0007t9-FF; Mon, 16 Aug 2021 09:13:31 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:3516 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mFcQl-0003uk-1y; Mon, 16 Aug 2021 09:13:31 -0400 In-Reply-To: <87czqdd0ng.fsf@gnus.org> (message from Lars Ingebrigtsen on Mon, 16 Aug 2021 14:39:15 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:212015 Archived-At: > From: Lars Ingebrigtsen > Date: Mon, 16 Aug 2021 14:39:15 +0200 > Cc: 21523@debbugs.gnu.org > > Drew Adams writes: > > > The Subject line is not very clear. Here is a recipe. You decide > > whether the behavior is correct or a bug. FWIW, this behavior is at > > least as old as Emacs 20 (with transient-mark-mode on). > > > > emacs -Q > > > > In buffer *scratch*, put point before "that" on the last line. > > `M-c', to capitalize "That". > > `C-SPC C-e', to select the text after "That", up to eol. > > (The region does not contain the word "That".) > > > > `C-_' to undo the last change within the region. > > The word "that" is inserted, giving this: > > > > ;; then enter the text in Thatthat file=A1=AFs own buffer. > > This bug is still present in Emacs 28. Why is it a bug? What is the expected "non-buggy" behavior in this case?