GNU logs - #61189, boring messages

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Subject: bug#61189: 29.0.60; Strange log-edit-mode M-q bug introduced in 27.1
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It's an old bug, but it requires such a specific kind of log
message to trigger that it took me until a few months ago to
finally hit it!

To reproduce:
0. open modified file under version control
1. C-x v v
2. Enter the following two-line message (i.e. replace "Summary:" and the r=
est):
bork bork bork bork bork bork bork bork bork bork bork bork bork
bork (e.g. bork) bork bork bork bork bork bork bork bork
3. M-q
4. M-q

(I have run with (setq log-edit-hook '(log-edit-show-files)) for a long ti=
me
and that's how I encountered the bug.)

Expected:
First M-q fills the paragraph to 70 columns.
Second does nothing.

Actual:
First M-q fills the paragraph to 70 columns.
Second moves one bork back from line one to line two, adds a colon, and
deletes the sapce before the opening parenthesis, resulting in:

bork bork bork bork bork bork bork bork bork bork bork bork bork
bork:(e.g. bork) bork bork bork bork bork bork bork bork

Bug introduced in commit 01661f33c11654d1fe5fe1013332db2500b7f449.



In GNU Emacs 29.0.60 (build 3, x86_64-pc-linux-gnu, X toolkit, cairo
 version 1.16.0) of 2023-01-30 built on dogato
Repository revision: 86b03046c0097aa7bd342efe9b9fde711ed81755
Repository branch: emacs-29
Windowing system distributor 'The X.Org Foundation', version 11.0.12003000
System Description: openSUSE Leap 15.4

Configured using:
 'configure -C --prefix=3D/home/epg/.local --disable-silent-rules
 --without-libsystemd --without-xft --without-m17n-flt
 --without-toolkit-scroll-bars --without-gpm --without-dbus
 --without-gsettings --without-selinux --without-compress-install
 --with-x --with-tree-sitter
 TREE_SITTER_CFLAGS=3D-I/home/epg/src/tree-sitter/tree-sitter/lib/include
 TREE_SITTER_LIBS=3D/home/epg/src/tree-sitter/tree-sitter/libtree-sitter.a
 CC=3Dgcc-11'

Configured features:
CAIRO FREETYPE GIF GLIB GMP GNUTLS HARFBUZZ JPEG JSON LIBXML2 MODULES
NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TREE_SITTER WEBP X11 XDBE XIM XINPUT2 XPM LUCID ZLIB

Important settings:
  value of $LC_CTYPE: en_US.UTF-8
  value of $XMODIFIERS: @im=3Dibus
  locale-coding-system: utf-8-unix

Major mode: Org

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug sh-script smie treesit executable vc-git
diff-mode easy-mmode vc-dispatcher org-element org-persist org-id
org-refile avl-tree generator oc-basic cl-extra help-mode ol-eww eww xdg
url-queue thingatpt mm-url ol-rmail ol-mhe ol-irc ol-info ol-gnus
nnselect gnus-art mm-uu mml2015 mm-view mml-smime smime gnutls dig
gnus-sum shr pixel-fill kinsoku url-file svg dom browse-url url
url-proxy url-privacy url-expand url-methods url-history url-cookie
generate-lisp-file url-domsuf url-util url-parse auth-source cl-seq
eieio eieio-core cl-macs json map byte-opt gv bytecomp byte-compile
url-vars gnus-group gnus-undo gnus-start gnus-dbus dbus xml gnus-cloud
nnimap nnmail mail-source utf7 nnoo parse-time gnus-spec gnus-int
gnus-range message sendmail mailcap yank-media puny rfc822 mml mml-sec
password-cache epa derived epg rfc6068 epg-config mm-decode mm-bodies
mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums mailabbrev
gmm-utils mailheader gnus-win gnus nnheader gnus-util
text-property-search mail-utils range mm-util mail-prsvr wid-edit
ol-docview doc-view filenotify jka-compr image-mode exif dired
dired-loaddefs ol-bibtex bibtex iso8601 ol-bbdb ol-w3m ol-doi
org-link-doi org ob ob-tangle ob-ref ob-lob ob-table ob-exp org-macro
org-src ob-comint org-pcomplete pcomplete comint ansi-osc ansi-color
ring org-list org-footnote org-faces org-entities time-date subr-x
noutline outline icons ob-emacs-lisp ob-core ob-eval org-cycle org-table
ol rx org-fold org-fold-core org-keys oc org-loaddefs find-func cal-menu
calendar cal-loaddefs org-version org-compat org-macs format-spec
cl-loaddefs cl-lib rmc iso-transl tooltip cconv eldoc paren electric
uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel
term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image
regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu
timer select scroll-bar mouse jit-lock font-lock syntax font-core
term/tty-colors frame minibuffer nadvice seq simple cl-generic
indonesian philippine cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
composite emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs
theme-loaddefs faces cus-face macroexp files window text-properties
overlay sha1 md5 base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads inotify dynamic-setting
font-render-setting cairo x-toolkit xinput2 x multi-tty
make-network-process emacs)

Memory information:
((conses 16 187497 8623)
 (symbols 48 20567 0)
 (strings 32 71444 1778)
 (string-bytes 1 2202630)
 (vectors 16 38089)
 (vector-slots 8 427107 12649)
 (floats 8 268 117)
 (intervals 56 413 0)
 (buffers 984 12))

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Eric Gillespie <epg@HIDDEN>
Subject: bug#61189: Acknowledgement (29.0.60; Strange log-edit-mode M-q
 bug introduced in 27.1)
Message-ID: <handler.61189.B.16751191325335.ack <at> debbugs.gnu.org>
References: <71595.1675119121@HIDDEN>
X-Gnu-PR-Message: ack 61189
X-Gnu-PR-Package: emacs
Reply-To: 61189 <at> debbugs.gnu.org
Date: Mon, 30 Jan 2023 22:53:02 +0000

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Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#61189: 29.0.60; Strange log-edit-mode M-q bug introduced in 27.1
Resent-From: Eli Zaretskii <eliz@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
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Resent-Date: Tue, 31 Jan 2023 12:29:01 +0000
Resent-Message-ID: <handler.61189.B61189.167516813912522 <at> debbugs.gnu.org>
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To: Eric Gillespie <epg@HIDDEN>
Cc: 61189 <at> debbugs.gnu.org
Date: Tue, 31 Jan 2023 14:23:29 +0200
Message-Id: <83k0123nb2.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
In-Reply-To: <71595.1675119121@HIDDEN> (message from Eric
 Gillespie on Mon, 30 Jan 2023 16:52:01 -0600)
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> From: Eric Gillespie <epg@HIDDEN>
> Date: Mon, 30 Jan 2023 16:52:01 -0600
> 
> It's an old bug, but it requires such a specific kind of log
> message to trigger that it took me until a few months ago to
> finally hit it!
> 
> To reproduce:
> 0. open modified file under version control
> 1. C-x v v
> 2. Enter the following two-line message (i.e. replace "Summary:" and the rest):
> bork bork bork bork bork bork bork bork bork bork bork bork bork
> bork (e.g. bork) bork bork bork bork bork bork bork bork
> 3. M-q
> 4. M-q
> 
> (I have run with (setq log-edit-hook '(log-edit-show-files)) for a long time
> and that's how I encountered the bug.)
> 
> Expected:
> First M-q fills the paragraph to 70 columns.
> Second does nothing.
> 
> Actual:
> First M-q fills the paragraph to 70 columns.
> Second moves one bork back from line one to line two, adds a colon, and
> deletes the sapce before the opening parenthesis, resulting in:
> 
> bork bork bork bork bork bork bork bork bork bork bork bork bork
> bork:(e.g. bork) bork bork bork bork bork bork bork bork

It's because of the parenthesized "(e.g. bork)" thingy.

Last modified: Tue, 31 Jan 2023 12:30:02 UTC

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