GNU bug report logs - #80082
31.0.50; Buffer-menu-unmark-all-buffers removes too much flags

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Manuel Giraud <manuel <at> ledu-giraud.fr>
To: bug-gnu-emacs <at> gnu.org
Subject: 31.0.50; Buffer-menu-unmark-all-buffers removes too much flags
Date: Sun, 28 Dec 2025 13:31:47 +0100

Hi,

I'm not sure that 'Buffer-menu-unmark-all-buffers' works as intended.
The recipe:

    - emacs -Q
    - Open some files and buffers
    - M-x buffer-menu
    - s s s p d
    - M-<DEL> D
    - Observe that, on the previous line, the 'S' mark is removed as
      well as the 'D' mark.

The manual states that:

‘M-<DEL>’
     Remove a particular flag from all lines
     (‘Buffer-menu-unmark-all-buffers’).  This asks for a single
     character, and unmarks buffers marked with that character; typing
     <RET> removes all marks.

So I guess that only the 'D' mark should have been removed in the
previous line with my recipe.  What am i missing?
    


In GNU Emacs 31.0.50 (build 1, x86_64-unknown-openbsd7.8) of 2025-12-27
 built on computer
Repository revision: ab7ed33f6dc8965da22f1200ccfacc1899064fd2
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101020
System Description: OpenBSD computer 7.8 GENERIC.MP#182 amd64

Configured using:
 'configure CC=egcc CPPFLAGS=-I/usr/local/include
 LDFLAGS=-L/usr/local/lib MAKEINFO=gmakeinfo --prefix=/home/manuel/emacs
 --bindir=/home/manuel/bin --with-x-toolkit=no
 --with-toolkit-scroll-bars=no --without-cairo --without-dbus
 --without-gconf --without-gsettings --without-compress-install'

Configured features:
FREETYPE GIF GLIB GMP GNUTLS HARFBUZZ JPEG LCMS2 LIBOTF LIBXML2 M17N_FLT
MODULES NOTIFY KQUEUE OLDXMENU PDUMPER PNG RSVG SQLITE3 THREADS TIFF
TREE_SITTER WEBP X11 XDBE XFT XIM XINERAMA XINPUT2 XPM XRANDR ZLIB

Important settings:
  value of $LC_CTYPE: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Info

Minor modes in effect:
  display-time-mode: t
  display-battery-mode: t
  desktop-save-mode: t
  exwm-randr-mode: t
  server-mode: t
  electric-pair-mode: t
  repeat-mode: t
  global-eldoc-mode: t
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  show-paren-mode: t
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  file-name-shadow-mode: t
  isearch-fold-quotes-mode: t
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  font-lock-mode: t
  blink-cursor-mode: t
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  minibuffer-regexp-mode: t
  buffer-read-only: t
  line-number-mode: t
  indent-tabs-mode: t
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  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/home/manuel/prog/elisp/exwm/exwm hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm
/home/manuel/prog/elisp/exwm/exwm-xsettings hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-xsettings
/home/manuel/prog/elisp/exwm/exwm-xim hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-xim
/home/manuel/prog/elisp/exwm/exwm-workspace hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-workspace
/home/manuel/prog/elisp/exwm/exwm-randr hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-randr
/home/manuel/prog/elisp/exwm/exwm-manage hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-manage
/home/manuel/prog/elisp/exwm/exwm-layout hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-layout
/home/manuel/prog/elisp/exwm/exwm-input hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-input
/home/manuel/prog/elisp/exwm/exwm-floating hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-floating
/home/manuel/prog/elisp/exwm/exwm-systemtray hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-systemtray
/home/manuel/prog/elisp/exwm/exwm-core hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-core
/home/manuel/prog/elisp/exwm/exwm-background hides /home/manuel/.emacs.d/elpa/exwm-0.34/exwm-background
/home/manuel/.el/lua-mode hides /home/manuel/emacs/share/emacs/31.0.50/lisp/progmodes/lua-mode
/home/manuel/.emacs.d/elpa/idlwave-6.5.1/idlwave hides /home/manuel/emacs/share/emacs/31.0.50/lisp/obsolete/idlwave
/home/manuel/.emacs.d/elpa/idlwave-6.5.1/idlw-toolbar hides /home/manuel/emacs/share/emacs/31.0.50/lisp/obsolete/idlw-toolbar
/home/manuel/.emacs.d/elpa/idlwave-6.5.1/idlw-shell hides /home/manuel/emacs/share/emacs/31.0.50/lisp/obsolete/idlw-shell
/home/manuel/.emacs.d/elpa/idlwave-6.5.1/idlw-help hides /home/manuel/emacs/share/emacs/31.0.50/lisp/obsolete/idlw-help
/home/manuel/.emacs.d/elpa/idlwave-6.5.1/idlw-complete-structtag hides /home/manuel/emacs/share/emacs/31.0.50/lisp/obsolete/idlw-complete-structtag

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vc-sccs vc-svn vc-cvs vc-rcs oc-basic ol-eww eww vtable mule-util
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Memory information:
((conses 16 949699 639758) (symbols 48 56908 30)
 (strings 32 270013 38561) (string-bytes 1 6682064)
 (vectors 16 156728) (vector-slots 8 2198360 56364) (floats 8 789 724)
 (intervals 56 30596 4168) (buffers 1064 181))

-- 
Manuel Giraud

Message #8 received at 80082 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Manuel Giraud <manuel <at> ledu-giraud.fr>
Cc: 80082 <at> debbugs.gnu.org
Subject: Re: bug#80082: 31.0.50; Buffer-menu-unmark-all-buffers removes too
 much flags
Date: Tue, 30 Dec 2025 19:47:41 +0200

> I'm not sure that 'Buffer-menu-unmark-all-buffers' works as intended.
> The recipe:
>
>     - emacs -Q
>     - Open some files and buffers
>     - M-x buffer-menu
>     - s s s p d
>     - M-<DEL> D
>     - Observe that, on the previous line, the 'S' mark is removed as
>       well as the 'D' mark.
>
> The manual states that:
>
> ‘M-<DEL>’
>      Remove a particular flag from all lines
>      (‘Buffer-menu-unmark-all-buffers’).  This asks for a single
>      character, and unmarks buffers marked with that character; typing
>      <RET> removes all marks.
>
> So I guess that only the 'D' mark should have been removed in the
> previous line with my recipe.  What am i missing?

Looks like your interpretation is correct.

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