23.0.60; Custom-save deleting custom file

[Bastien Guerry]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Saving a change with Custom-save deletes the old custom file (in my case
~/.emacs-custom.el).  This is quite annoying if you don't have backups. 


In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.9)
 of 2008-05-04 on bzg.ath.cx
Windowing system distributor `The X.Org Foundation', version 11.0.10400090
configured using `configure  '--enable-font-backend' '--with-x-toolkit=gtk''

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: fr_FR.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-undo-mode: t
  display-time-mode: t
  delete-selection-mode: t
  pc-selection-mode: t
  shell-dirtrack-mode: t
  show-paren-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
<C-down> <down> C-e C-a <C-right> C-e C-a <C-down> 
<down> C-e C-a <C-right> C-e C-a <C-up> <up> C-e C-z 
c <f1> C-n C-n C-n C-n C-n C-n C-n C-n j e m a <tab> 
. <backspace> <return> C-u 1 0 0 0 <return> / s c u 
s t o m <return> <C-down> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <C-down> <up> 
<up> <down> <return> M-x r e p o <tab> r <tab> b u 
g <tab> <return> C u s t M-x c u s <tab> C-x C-x o 
C-x o C-x o <tab> C-g C-g <return> <return> <return> 
q g M-x c u s a <tab> - <backspace> <backspace> t <tab> 
C-g M-x c u s <tab> - f a <tab> <return> <return> <C-down> 
<C-down> C-h k C-x C-s C-x 1 C-x k <return> g M-x r 
e p o r <tab> b u <tab> <return> C u s t o m - s a 
v e SPC d e l e t e <C-backspace> o <backspace> o <backspace> 
d e l e t i n g SPC o l d SPC <C-backspace> <C-backspace> 
d e e l <backspace> <backspace> l e t i n g SPC o l 
d . <backspace> SPC ~ / <backspace> <backspace> <backspace> 
C-z c <backspace> SPC c i <backspace> u s t o m SPC 
C-x o C-z c C-x C-f C-x o C-x o s m d l f k s d m f 
l k s d m f l k s d f C-x o C-x o f i l e C-a C-e <C-left> 
<C-left> <C-backspace> C-e C-a C-e <C-left> C-a C-e 
<C-left> <C-left> <C-left> C-a C-e <C-left> C-e C-a 
C-e <return> C-x o C-e <return> C-x o C-g C-g g M-x 
<up> <return>

Recent messages:
nnml: Reading incoming mail (no new mail)...done
nndiary: Reading incoming mail from file...
nndiary: Reading incoming mail (no new mail)...done
Killed inactive buffer: *Help*.
Entering debugger... [3 times]
Quit [2 times]
nnml: Reading incoming mail from file...
nnml: Reading incoming mail (no new mail)...done
nndiary: Reading incoming mail from file...
nndiary: Reading incoming mail (no new mail)...done

-- 
Bastien