From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Kangas Newsgroups: gmane.emacs.bugs Subject: bug#36588: Unable to revert M-x apropos help buffer Date: Thu, 11 Jul 2019 05:31:59 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="207002"; mail-complaints-to="usenet@blaine.gmane.org" To: 36588@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Jul 11 05:33:17 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hlPpb-000req-Ap for geb-bug-gnu-emacs@m.gmane.org; Thu, 11 Jul 2019 05:33:15 +0200 Original-Received: from localhost ([::1]:38288 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hlPpZ-0001ln-LT for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 10 Jul 2019 20:32:10 -0700 (PDT) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] 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: 209.51.188.43 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:162677 Archived-At: I get an error trying to revert the apropos help buffer on Emacs 27 (current master). I could also reproduce this on 26.1. Steps to reproduce: 0. emacs -Q 1. M-x apropos RET foo RET 2. C-x o 3. g yes RET 4. Error: apply: Symbol=E2=80=99s function definition is void: nil Backtrace: Debugger entered--Lisp error: (void-function nil) nil() apply(nil nil) help-mode-revert-buffer(t nil) revert-buffer(t) funcall-interactively(revert-buffer t) #(revert-buffer nil nil) apply(# revert-buffer (nil nil)) call-interactively@ido-cr+-record-current-command(# revert-buffer nil nil) apply(call-interactively@ido-cr+-record-current-command # (revert-buffer nil nil)) call-interactively(revert-buffer nil nil) command-execute(revert-buffer) GNU Emacs 27.0.50 (build 5, x86_64-apple-darwin15.6.0, NS appkit-1404.47 Version 10.11.6 (Build 15G22010)) of 2019-07-11 Thanks, Stefan Kangas