Subject: 28.0.50; isearch isearch-repeat-on-direction-change vs isearch-beginning-of-buffer

From: Ergus <[email-masked]>
Date: Wed, 08 Sep 2021 02:29:15 +0200

Hi:

I have this config in my system:

(setq isearch-repeat-on-direction-change t)
(define-key isearch-mode-map (kbd "M-<") #'isearch-beginning-of-buffer)

If I have the cursor on the beginning of:

1abc
2abc
3abc
4abc

and do

C-s abc ;; cursor at the end of 1abc
C-s     ;; cursor at the end of 2abc
C-s     ;; cursor at the end of 3abc
C-r     ;; cursor at the beginning of 2abc
M-<     ;; cursor at the end of 3abc <- this is wrong

The cursor goes to the end of 3abc (next candidate) instead of 1abc
(first) as expected from isearch-beginning-of-buffer.

If I repeat M-< then it goes to the right candidate (end of 1abc).

This seems related with the fact that the cursor needs to move to the
other-end or something like that. Because isearch-beginning-of-buffer
does not respect when the cursor was previously at the beginning or the
end of the candidates.

In GNU Emacs 28.0.50 (build 6, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.17.4)
 of 2021-09-06 built on Ergus
Repository revision: 61e5570863aa236628a87c722912dea86d2903b0
Repository branch: master
System Description: Arch Linux

Configured using:
 'configure --prefix=/home/ergo/.local/ --with-mailutils --with-json
 --with-x-toolkit=gtk3 --with-xft --with-wide-int --with-modules
 --with-cairo --with-harfbuzz --with-native-compilation'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER
PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XPM
GTK3 ZLIB

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  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
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  flyspell-mode: t
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  flycheck-mode: t
  counsel-mode: t
  ivy-mode: t
  composable-mark-mode: t
  composable-mode: t
  repeat-mode: t
  xterm-mouse-mode: t
  winner-mode: t
  save-place-mode: t
  which-key-mode: t
  override-global-mode: t
  delete-selection-mode: t
  savehist-mode: t
  global-display-fill-column-indicator-mode: t
  display-fill-column-indicator-mode: t
  global-display-line-numbers-mode: t
  display-line-numbers-mode: t
  eldoc-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  context-menu-mode: t
  global-font-lock-mode: t
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  auto-composition-mode: t
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  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t

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/usr/share/emacs/site-lisp/notmuch-crypto hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-crypto
/usr/share/emacs/site-lisp/notmuch-compat hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-compat
/usr/share/emacs/site-lisp/notmuch-hello hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-hello
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/usr/share/emacs/site-lisp/coolj hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/coolj
/usr/share/emacs/site-lisp/notmuch-draft hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-draft
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/usr/share/emacs/site-lisp/notmuch-parser hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-parser
/usr/share/emacs/site-lisp/notmuch-lib hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-lib
/usr/share/emacs/site-lisp/notmuch-mua hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-mua
/usr/share/emacs/site-lisp/notmuch-message hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-message
/usr/share/emacs/site-lisp/notmuch-address hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-address
/usr/share/emacs/site-lisp/notmuch-wash hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-wash
/usr/share/emacs/site-lisp/notmuch-tag hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-tag
/usr/share/emacs/site-lisp/notmuch-print hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-print
/usr/share/emacs/site-lisp/notmuch-query hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-query
/usr/share/emacs/site-lisp/notmuch-jump hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-jump
/usr/share/emacs/site-lisp/notmuch-company hides /home/ergo/.emacs.d/elpa/notmuch-20210830.2334/notmuch-company
/home/ergo/.emacs.d/elpa/transient-20210819.2118/transient hides /home/ergo/.local/share/emacs/28.0.50/lisp/transient

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mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils thingatpt amx s
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flyspell-correct-ivy flyspell-correct flyspell ispell company-keywords
company-gtags company-dabbrev-code company-dabbrev company-files
company-semantic company-template company-capf company flycheck json map
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dynamic-setting system-font-setting font-render-setting cairo
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Memory information:
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 (symbols 48 18897 0)
 (strings 32 60245 8110)
 (string-bytes 1 2209331)
 (vectors 16 30930)
 (vector-slots 8 648313 10429)
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 (buffers 992 11))