bug#10249: 24.0.92; align-regexp fails with 'not a markerp: 0' error

["Mark T. Kennedy" <mkennedy@diamondbackcap.com>]

1) enter the text:

foo = 1
bar     =     2
baz  =    'a string'

2) set the region around those three lines
3) type M-X align-regexp and specify '=' as the regexp
4) align-regexp will fail with the error 'wrong type argument: markerp, 0'

In GNU Emacs 24.0.92.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.22.0)
 of 2011-12-01 on d1.diamondbackcap.corp
Windowing system distributor `Fedora Project', version 11.0.10905000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.utf8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Apropos

Minor modes in effect:
  which-function-mode: t
  global-hi-lock-mode: t
  hi-lock-mode: t
  show-paren-mode: t
  icomplete-mode: t
  global-visible-mark-mode: t
  visible-mark-mode: t
  msb-mode: t
  shell-dirtrack-mode: t
  savehist-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
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
b a l <tab> <return> <escape> , C-s s e t - m a r C-a 
<escape> , C-s a l i g n - - s e t - m a r k e r C-s 
C-s C-s C-s C-s C-s C-s C-s C-a <escape> , <escape> 
x o c c <return> <escape> p C-k a l i g n - - s e t 
- m a r k e r C-l <return> <select-window> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> C-n C-n 
C-c C-c C-x o C-p C-c C-c C-x o C-n C-c C-c C-x o C-n 
C-c C-c C-x o C-n C-c C-c C-x o C-p C-c C-c C-x 1 C-a 
C-l C-M-a C-g C-x C-x C-g C-p C-p C-p C-p C-p C-n C-n 
<f6> f e o l <return> <f7> <f6> f e o l <return> <f7> 
C-s e o l C-r C-r C-r C-r C-r C-r C-a <escape> , C-s 
e o l C-s C-s C-s C-s <help-echo> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <help-echo> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <help-echo> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<help-echo> <select-window> <switch-frame> C-s b u 
g C-s C-a m <return> C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n m <return> <help-echo> <help-echo> 
<switch-frame> <down-mouse-4> <mouse-4> <escape> , 
C-s e o l C-s C-s C-a <escape> x a p r o <tab> <return> 
e o l <return> C-x o C-n C-n <return> C-f C-f C-f C-f 
C-f C-f <return> C-a <help-echo> <help-echo> <switch-frame> 
<switch-frame> e o l C-j q e o l p C-j q ( e o l ) 
C-j q ( e o l p ) C-j <switch-frame> <help-echo> <switch-frame> 
<help-echo> <switch-frame> <switch-frame> <switch-frame> 
<help-echo> <select-window> <help-echo> <switch-frame> 
<select-window> <help-echo> <help-echo> <switch-frame> 
<help-echo> <select-window> <help-echo> <select-window> 
<switch-frame> <switch-frame> <escape> x r e p o r 
<tab> <return>

Recent messages:
Mark set
Mark saved where search started
apropos-symbol-button-display-help: There is nothing to follow for `eol'
apropos-follow: There is nothing to follow here
Entering debugger...
Back to top level.
Entering debugger...
Back to top level.
Entering debugger...
Back to top level.

Load-path shadows:
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-cmds hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-cmds
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-fonts hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-fonts
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-mode hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-mode
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-compat hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-compat
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-guess hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-guess
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-langs hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-langs
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-bytecomp hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-bytecomp
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-align hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-align
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-awk hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-awk
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-menus hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-menus
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-defs hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-defs
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-styles hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-styles
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-engine hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-engine
/usr/local/share/emacs/site-lisp/cc-mode-5.32/cc-vars hides /usr/local/share/emacs/24.0.92/lisp/progmodes/cc-vars
/usr/local/share/emacs/site-lisp/tramp-cache hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-cache
/usr/local/share/emacs/site-lisp/tramp hides /usr/local/share/emacs/24.0.92/lisp/net/tramp
/usr/local/share/emacs/site-lisp/trampver hides /usr/local/share/emacs/24.0.92/lisp/net/trampver
/usr/local/share/emacs/site-lisp/tramp-compat hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-compat
/usr/local/share/emacs/site-lisp/tramp-smb hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-smb
/usr/local/share/emacs/site-lisp/tramp-gw hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-gw
/usr/local/share/emacs/site-lisp/tramp-uu hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-uu
/usr/local/share/emacs/site-lisp/tramp-gvfs hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-gvfs
/usr/local/share/emacs/site-lisp/tramp-sh hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-sh
/usr/local/share/emacs/site-lisp/tramp-ftp hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-ftp
/usr/local/share/emacs/site-lisp/tramp-loaddefs hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-loaddefs
/usr/local/share/emacs/site-lisp/tramp-cmds hides /usr/local/share/emacs/24.0.92/lisp/net/tramp-cmds

Features:
(shadow mail-extr message rfc822 mml mml-sec mm-decode mm-bodies
mm-encode mailabbrev gmm-utils mailheader emacsbug sort vc-dispatcher
vc-svn lpr bs tramp-cache tramp-sh debug cus-start cus-load apropos
hippie-exp multi-isearch add-log jka-compr ruler-mode mule-util winner
which-func hi-lock icomplete server menu-bar+ edit-server facemenu+
palette eyedropper hexrgb bookmark+ gnus gnus-ems nnheader mail-utils
bookmark pp cflow-mode espresso ido json thingatpt newcomment paren
mic-paren twit url-http tls url-auth mail-parse rfc2231 rfc2047 rfc2045
ietf-drums url-gw url url-proxy url-privacy url-expand url-methods
url-history url-cookie url-util url-parse url-vars mailcap xml js2-mode
imenu js2-indent js2-parse js2-browse js2-highlight js2-ast js2-messages
js2-scan js2-util js2-vars cc-langs cc-mode warnings cc-fonts cc-guess
cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs
etags-stack etags register-list help-fns+ help-mode view wid-edit
bindings+ trim regex-tool visible-mark anything-dabbrev-expand anything
edmacro kmacro woman man perl-find-library pulse festival crosshairs
col-highlight vline easy-mmode hl-line+ hl-line frame-cmds fit-frame
frame-fns avoid browse-kill-ring derived cl page-menu teco rect-mark msb
info tramp tramp-compat auth-source eieio byte-opt bytecomp byte-compile
cconv macroexp assoc gnus-util mm-util mail-prsvr password-cache shell
pcomplete comint ring format-spec tramp-loaddefs regexp-opt autoinsert
saveplace savehist cperl-mode easymenu echistory chistory ebuff-menu
electric align advice help-fns advice-preload time-date tooltip
ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd
fontset image fringe 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
dbusbind dynamic-setting system-font-setting font-render-setting
move-toolbar gtk x-toolkit x multi-tty emacs)

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