bug#13511: 24.3.50; C-x C-f M-n does not produce buffer filename

["Jan Djärv" <jan.h.d@swipnet.se>]

Hello.

Put this content:
-------------- cut here --------------
5253e3277c7cb3b84eb2c08fba1730ef ./images/about.bmp
-------------- cut here --------------

in a file, say ~/tst.txt.
Put the cursor at the ., and do
C-x C-f M-n

The current filename for the buffer is not inserted into the minibuffer.
You have to press M-n a second time to get ~/tst.txt.

Sometimes, given more content in the file, the minibuffer shows
~/images/about.bmp.  I haven't been able to narrow this down to a
minimal test case.

I was under the impression that C-x C-f M-n should always give the
filename of the current buffer.

        Jan D.


In GNU Emacs 24.3.50.1 (x86_64-apple-darwin12.2.1, NS apple-appkit-1187.34)
of 2013-01-14 on jdvpro.local
Bzr revision: 111517 rgm@gnu.org-20130114010938-c030qqf77k8jckrm
Windowing system distributor `Apple', version 10.3.1187
Configured using:
`configure --verbose --with-ns CFLAGS=-g --no-create --no-recursion'

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

Major mode: Lisp Interaction

Minor modes in effect:
 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:
<escape> x r e p o r t - e m <tab> C-g <escape> x r 
e p o r t - e m <tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Quit

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils 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 macroexp 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)