Replace string in customization buffer.

[Masao Kumagai <masao.biz.kumagai@nifty.com>]

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In GNU Emacs 21.1.1 (i386-mingw-nt5.1.2600)
 of 2004-07-06 on STAYHIGH
configured using `configure --with-gcc (3.3)'
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: JPN
  locale-coding-system: nil
  default-enable-multibyte-characters: t

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


Command `replace-string' in customization buffer strange.

1. Define variable
   (defcustom fruits-bascket (list "apple" "banana" "cherry")
     "*Hold fruits."
     :type 'sexp)

2. Invoke customization `customize-variable' then specify `fruits-bascket'.

3. In customization buffer, M-x replace-string to replace apple with abogado.
   It replaces apple with abogadople but with abogado.


Recent input:
C-k C-k C-b C-x C-e C-x o C-x b * m e <tab> s <tab> 
<return> M-> C-x o C-j C-p C-k <return> M-x c u s t 
o m i z e <backspace> i n g - <backspace> <backspace> 
<backspace> <backspace> e - v a r i <tab> <return> 
f r u i <tab> <return> M-x r e p l a c e - s t i <backspace> 
r <return> a p p l e <return> a b o g a <backspace> 
<backspace> <backspace> <backspace> b o g a d o <return> 
M-x M-p M-p M-p M-p M-p <return>

Recent messages:
Loading wid-browse...done
Creating customization buttons...
Creating customization items...
Creating customization items ...done
Creating customization setup...
Creating customization buffer...done
Mark set
Replaced 1 occurrence
Loading dabbrev...done
dabbrev-expand: No dynamic expansion for `custoomiz' found