bug#23454: 25.0.93; dired-toggle-marks affects hidden subdirs

[Jorge Peixoto de Morais Neto]

Create a directory hierarchy corresponding to the following Dired text:
BEGIN
  /tmp/dired-toggle-marks-bug:
  total used in directory 32 available 383429976
  drwxrwxr-x  5 jorge jorge  4096 2016-05-04 16:54:35 .
  drwxrwxrwt 20 root  root  16384 2016-05-04 16:57:49 ..
  -rw-rw-r--  1 jorge jorge     0 2016-05-04 15:19:07 dummy
  drwxrwxr-x  2 jorge jorge  4096 2016-05-04 16:54:09 dummydir0
  drwxrwxr-x  2 jorge jorge  4096 2016-05-04 16:53:55 dummydir1
  drwxrwxr-x  2 jorge jorge  4096 2016-05-04 16:54:35 dummydir2

  /tmp/dired-toggle-marks-bug/dummydir0:
  total 8
  drwxrwxr-x 2 jorge jorge 4096 2016-05-04 16:54:09 .
  drwxrwxr-x 5 jorge jorge 4096 2016-05-04 16:54:35 ..
  -rw-rw-r-- 1 jorge jorge    0 2016-05-04 15:19:31 dummy0

  /tmp/dired-toggle-marks-bug/dummydir1:
  total 8
  drwxrwxr-x 2 jorge jorge 4096 2016-05-04 16:53:55 .
  drwxrwxr-x 5 jorge jorge 4096 2016-05-04 16:54:35 ..
  -rw-rw-r-- 1 jorge jorge    0 2016-05-04 16:53:55 dummy1

  /tmp/dired-toggle-marks-bug/dummydir2:
  total 8
  drwxrwxr-x 2 jorge jorge 4096 2016-05-04 16:54:35 .
  drwxrwxr-x 5 jorge jorge 4096 2016-05-04 16:54:35 ..
END

Open it in Dired and insert all subdirs.  Hide all tree.  Mark dummy.  Hit t
to invoke dired-toggle-marks.  Hit M-$ to invoke dired-hide-all, thus
revealing all three subdirs, so we can see what happened. The result is:
BEGIN
  /tmp/dired-toggle-marks-bug:
  total used in directory 32 available 383429976
  drwxrwxr-x  5 jorge jorge  4096 2016-05-04 16:54:35 .
  drwxrwxrwt 20 root  root  16384 2016-05-04 16:57:49 ..
  -rw-rw-r--  1 jorge jorge     0 2016-05-04 15:19:07 dummy
* drwxrwxr-x  2 jorge jorge  4096 2016-05-04 16:54:09 dummydir0
* drwxrwxr-x  2 jorge jorge  4096 2016-05-04 16:53:55 dummydir1
* drwxrwxr-x  2 jorge jorge  4096 2016-05-04 16:54:35 dummydir2

* /tmp/dired-toggle-marks-bug/dummydir0:
  total 8
  drwxrwxr-x 2 jorge jorge 4096 2016-05-04 16:54:09 .
  drwxrwxr-x 5 jorge jorge 4096 2016-05-04 16:54:35 ..
  -rw-rw-r-- 1 jorge jorge    0 2016-05-04 15:19:31 dummy0

* /tmp/dired-toggle-marks-bug/dummydir1:
  total 8
  drwxrwxr-x 2 jorge jorge 4096 2016-05-04 16:53:55 .
  drwxrwxr-x 5 jorge jorge 4096 2016-05-04 16:54:35 ..
  -rw-rw-r-- 1 jorge jorge    0 2016-05-04 16:53:55 dummy1

  /tmp/dired-toggle-marks-bug/dummydir2:
  total 8
  drwxrwxr-x 2 jorge jorge 4096 2016-05-04 16:54:35 .
  drwxrwxr-x 5 jorge jorge 4096 2016-05-04 16:54:35 ..
END

There are unexpected (spurious) marks.  If the listing switches include "-A",
as my switches used to include, something worse happens: files dummy0 and
dummy1 get marked.  This can cause Dired to perform unexpected operations,
possibly causing data loss.  As a workaround, I have reverted my listing
switches back to the default.

In GNU Emacs 25.0.93.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.6)
 of 2016-04-25 built on jorge-DQ77PRO
Windowing system distributor 'The X.Org Foundation', version 11.0.11702000
System Description:     Ubuntu 15.10

Configured using:
 'configure --prefix=/usr/local/emacs-Ubuntu-15.10 --with-modules'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 MODULES

Important settings:
  value of $LC_MONETARY: en_DK.UTF-8
  value of $LC_NUMERIC: en_DK.UTF-8
  value of $LC_TIME: en_DK.UTF-8
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Dired by name

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-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
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Mark set [2 times]
Quit
2 marks removed
Mark set [3 times]
Quit [3 times]
2 marks removed
Mark set
Quit
2 marks removed
Scanning for dabbrevs...done

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/home/jorge/.emacs.d/elpa/org-plus-contrib-20160425/ob-maxima hides
/usr/local/emacs-Ubuntu-15.10/share/emacs/25.0.93/lisp/org/ob-maxima
/home/jorge/.emacs.d/elpa/org-plus-contrib-20160425/org-footnote hides
/usr/local/emacs-Ubuntu-15.10/share/emacs/25.0.93/lisp/org/org-footnote
/home/jorge/.emacs.d/elpa/org-plus-contrib-20160425/ob hides /usr/local/emacs-
Ubuntu-15.10/share/emacs/25.0.93/lisp/org/ob
/home/jorge/.emacs.d/elpa/org-plus-contrib-20160425/ob-awk hides
/usr/local/emacs-Ubuntu-15.10/share/emacs/25.0.93/lisp/org/ob-awk
/home/jorge/.emacs.d/elpa/org-plus-contrib-20160425/ob-tangle hides
/usr/local/emacs-Ubuntu-15.10/share/emacs/25.0.93/lisp/org/ob-tangle
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/home/jorge/.emacs.d/elpa/org-plus-contrib-20160425/ox hides /usr/local/emacs-
Ubuntu-15.10/share/emacs/25.0.93/lisp/org/ox
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/usr/local/emacs-Ubuntu-15.10/share/emacs/25.0.93/lisp/org/org-mhe
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/usr/local/emacs-Ubuntu-15.10/share/emacs/25.0.93/lisp/org/org-inlinetask

Features:
(shadow sort mail-extr dabbrev emacsbug message format-spec rfc822 mml
mml-sec password-cache epg gnus-util mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047
rfc2045 ietf-drums mm-util help-fns mail-prsvr mail-utils shell
pcomplete comint ansi-color ring dired-aux dired finder-inf info package
epg-config seq byte-opt gv bytecomp byte-compile cl-extra help-mode
easymenu cconv cl-loaddefs pcase cl-lib time-date mule-util tooltip
eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list newcomment elisp-mode lisp-mode prog-mode register page
menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core frame cl-generic 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 charscript case-table epa-hook jka-cmpr-hook help
simple abbrev minibuffer cl-preloaded nadvice loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
dbusbind inotify dynamic-setting system-font-setting font-render-setting
move-toolbar gtk x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 118667 15031)
 (symbols 48 22606 0)
 (miscs 40 421 497)
 (strings 32 24262 4041)
 (string-bytes 1 811404)
 (vectors 16 15820)
 (vector-slots 8 475293 7452)
 (floats 8 199 219)
 (intervals 56 807 36)
 (buffers 976 19)
 (heap 1024 51355 2218))

-- 
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