bug#12145: 24.1.50; enable-remote-dir-locals breaks find-name-dired in TRAMP buffers

[Matt McClure]

When `enable-remote-dir-locals` is `t`, `find-name-dired` in TRAMP buffers gives

    ...
    error in process filter: Wrong type argument: markerp, nil
    error in process filter: accept-process-output: Wrong type
argument: markerp, nil
    error in process filter: Wrong type argument: markerp, nil
    nil: exited abnormally with code 1.
    find-dired: Wrong type argument: processp, nil

To reproduce on Mac OS X:

    open -n -a Emacs --args -Q --no-site-file --eval '(progn (setq
enable-remote-dir-locals t) (find-name-dired "/user@host:/etc"
"*.conf"))'

I'm not able to reproduce the defect with the similar invocation:

    open -n -a Emacs --args -Q --no-site-file --eval '(progn
(find-name-dired "/user@host:/etc" "*.conf"))'


In GNU Emacs 24.1.50.1 (x86_64-apple-darwin, NS apple-appkit-1038.36)
 of 2012-07-14 on bob.porkrind.org
Bzr revision: 109087 cyd@gnu.org-20120714053223-jxkxt958pqg8tisb
Windowing system distributor `Apple', version 10.3.1138
Configured using:
 `configure '--host=x86_64-apple-darwin' '--build=i686-apple-darwin'
 '--with-ns' 'build_alias=i686-apple-darwin'
 'host_alias=x86_64-apple-darwin' 'CC=gcc -mmacosx-version-min=10.5''

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-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

Recent input:
C-x C-b C-n C-x o C-n C-n <return> C-x 1 <escape> v
<escape> v C-a <escape> > C-p C-p C-p C-p C-p C-p C-p
C-SPC C-n C-n C-n C-n C-n C-n C-g C-x h <escape> w
<escape> x e <backspace> r e p o r <tab> <return>

Recent messages:
error in process filter: Wrong type argument: markerp, nil
nil: exited abnormally with code 1.
find-dired: Wrong type argument: processp, nil
Mark set [2 times]
Quit
Mark set [2 times]
Saved text until ": processp, nil
Mark set [2 times]
Quit
"

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message rfc822 mml easymenu mml-sec
mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils
mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils mule-util
tramp-cache tramp-sh tramp tramp-compat auth-source eieio byte-opt
bytecomp byte-compile cconv macroexp gnus-util mm-util mail-prsvr
password-cache tramp-loaddefs shell pcomplete comint ansi-color ring
format-spec advice help-fns advice-preload find-dired dired time-date
tooltip ediff-hook vc-hooks lisp-float-type mwheel ns-win tool-bar dnd
fontset image regexp-opt fringe tabulated-list newcomment lisp-mode
register page menu-bar rfn-eshadow timer select scroll-bar mouse
jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer loaddefs button faces cus-face files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process ns multi-tty
emacs)


-- 
Matt McClure
http://www.matthewlmcclure.com
http://www.mapmyfitness.com/profile/matthewlmcclure