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#53294: 29.0.50; Indirect font changes incorrectly affecting original buffer Date: Sun, 16 Jan 2022 17:41:53 +0200 Message-ID: <83ilujy9fi.fsf@gnu.org> References: <835yqkyqzw.fsf@gnu.org> <83lezfybc9.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39199"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 53294@debbugs.gnu.org, monnier@iro.umontreal.ca To: Andrew Hyatt Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Jan 16 16:43:14 2022 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 1n97gY-000A2T-FM for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 16 Jan 2022 16:43:14 +0100 Original-Received: from localhost ([::1]:45704 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n97gX-0002Fe-JI for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 16 Jan 2022 10:43:13 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:45418) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n97gQ-0002FV-MU for bug-gnu-emacs@gnu.org; Sun, 16 Jan 2022 10:43:06 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51176) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n97gL-0006nn-NG for bug-gnu-emacs@gnu.org; Sun, 16 Jan 2022 10:43:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1n97gL-0000WW-KR for bug-gnu-emacs@gnu.org; Sun, 16 Jan 2022 10:43:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 16 Jan 2022 15:43:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 53294 X-GNU-PR-Package: emacs Original-Received: via spool by 53294-submit@debbugs.gnu.org id=B53294.16423477341955 (code B ref 53294); Sun, 16 Jan 2022 15:43:01 +0000 Original-Received: (at 53294) by debbugs.gnu.org; 16 Jan 2022 15:42:14 +0000 Original-Received: from localhost ([127.0.0.1]:44079 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1n97fa-0000VT-66 for submit@debbugs.gnu.org; Sun, 16 Jan 2022 10:42:14 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:44528) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1n97fX-0000V9-Qn for 53294@debbugs.gnu.org; Sun, 16 Jan 2022 10:42:12 -0500 Original-Received: from [2001:470:142:3::e] (port=49348 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n97fS-0006jd-B9; Sun, 16 Jan 2022 10:42:06 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=BMSZxhnd7gFP8lqv+5DvEiYCbJ0jlK43oLMb/sqNasI=; b=RNp2rAwjLzf4 1DdKZ3i2ieTdjqJ9XZ0alTvtONRJ7iuko3PfA8t5mYwVDXEDmxSSKLom9+i25RLIyb/7ZijLjEg3L Afw92qQ1VgOcNeXAnI6pV5539Vx75aLXG5D48hpeSaKkS1uMtOTYspJuRsu5gNgq6CpgF9Czz0EBo +aSLjAyUK+XyTZhNl0cLDL4QQSEAcNEGOu2V870a1JEMwMBNbAjy3jEMvB6J5CAfavtF+kB5IHeda qFniDX0Hx5f9I8JBD0osIupWyMY+0J16NkExjICrt7V9W8TShuSDHSv2nRXOrUbYdPCo9/lZdPXmg WeWGxiklUP+HhA0IdkIW+w==; Original-Received: from [87.69.77.57] (port=4502 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 1n97fS-0007cn-AA; Sun, 16 Jan 2022 10:42:06 -0500 In-Reply-To: (message from Andrew Hyatt on Sun, 16 Jan 2022 10:28:40 -0500) 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:224390 Archived-At: > From: Andrew Hyatt > Cc: 53294@debbugs.gnu.org > Date: Sun, 16 Jan 2022 10:28:40 -0500 > > > But "inheriting" the state means the indirect buffer gets the > > copy of the variables of the original buffer, and that is not a > > deep copy, AFAIU. > > > > Stefan, any comments on this issue? > > Sorry, I may have been unclear. I'm not disagreeing - what you > just said is correct. But, because of that, it's a bug for code to > make an indirect buffer, then perform operations on it via setcdr > or setf like things, which then will affect the original buffer's > variables. I'm not sure it's a bug. It could be a "feature", not limited to face-remapping-alist, but instead affecting every buffer-local variable that is not a simple scalar.