bug#43748: 28.0.50; M-x shell: there is no completion after cd ..

[Jean Louis]

I have noticed that there is no completion in M-x shell after I do the
cd ..

Example:

cd t<TAB> will give me: cd tmp

then I am in ~/tmp directory, then I do: cd ..

then if I wish to do again cd t<TAB>, there is "no match" notification.

It looks as bug to me.


In GNU Emacs 28.0.50 (build 15, x86_64-pc-linux-gnu, X toolkit, cairo version 
1.14.8, Xaw3d scroll bars)
 of 2020-09-24 built on protected.rcdrun.com
Repository revision: de54cd6f0edb3619777c17fe75560c5c84fed8a4
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.11907000
System Description: Hyperbola GNU/Linux-libre

Configured using:
 'configure --prefix=/package/text/emacs-2020-09-24
 --with-x-toolkit=lucid --with-modules --without-gpm
 
PKG_CONFIG_PATH=/home/data1/protected/GNUstep/Library/Libraries/pkgconfig:/usr/lib/pkgconfig'

Configured features:
XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND DBUS GSETTINGS GLIB NOTIFY
INOTIFY ACL GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF ZLIB
TOOLKIT_SCROLL_BARS LUCID X11 XDBE XIM MODULES THREADS JSON PDUMPER
LCMS2

Important settings:
  value of $LC_ALL: de_DE.UTF-8
  value of $LANG: de_DE.UTF-8
  value of $XMODIFIERS: @im=exwm-xim
  locale-coding-system: utf-8-unix

Major mode: Shell

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
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
None found.

Features:
(shadow sort hashcash mail-extr emacsbug message rmc puny dired
dired-loaddefs rfc822 mml easymenu mml-sec epa derived epg epg-config
gnus-util rmail rmail-loaddefs auth-source cl-seq eieio eieio-core
cl-macs eieio-loaddefs password-cache json map text-property-search
time-date subr-x seq byte-opt gv bytecomp byte-compile cconv mm-decode
mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils pcmpl-unix shell pcomplete comint ansi-color ring
tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type
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 elisp-mode
lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch
timer select scroll-bar mouse jit-lock font-lock syntax facemenu
font-core term/tty-colors frame minibuffer 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 composite charscript charprop
case-table epa-hook jka-cmpr-hook help simple abbrev obarray
cl-preloaded nadvice button loaddefs faces cus-face macroexp files
window text-properties overlay sha1 md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote threads dbusbind
inotify lcms2 dynamic-setting system-font-setting font-render-setting
cairo x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 60123 5982)
 (symbols 48 7738 1)
 (strings 32 21836 2158)
 (string-bytes 1 700779)
 (vectors 16 13238)
 (vector-slots 8 179540 10883)
 (floats 8 26 43)
 (intervals 56 285 0)
 (buffers 992 12))

-- 
Thanks,
Jean Louis