Smtpmail server password ends up serialized to .emacs customization buffer

[Peter Wisnovsky]

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In GNU Emacs 21.3.1 (i386-mingw-nt5.1.2600)
 of 2004-03-10 on NYAUMO
configured using `configure --with-gcc (3.2)'
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: ENU
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

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

I use VM and the current version of smtpmail.el/sendmail.el I
downloaded from the CVS repository, which support the ability to
customize the smptmail auth credentials along the lines of:

 '(smtpmail-auth-credentials (quote (("my.mail.server" 25 "my.userid" nil))))

The last "nil" for password indicates I want to be prompted, since I
don't want it in my .emacs file.

If I send mail I get prompted for the password. 
If I then customize another variable and say "Save for future
sessions" it serializes WHOLE customization variable set, including
the password, into my .emacs file. Gack!


Recent input:
<escape> x g n u <escape> <backspace> e m a c s <escape> 
<backspace> r e p o r t - b <tab> <escape> <backspace> 
<escape> <backspace> C-g C-h a b u g <return> C-x 0 
C-s e m a c s C-a C-v C-v C-v C-v C-v C-v C-v <escape> 
< C-s s u b m i t C-s C-s C-s C-w C-w C-s C-s C-r C-r 
C-s C-a C-s e a <backspace> m a c s C-s C-s C-a <escape> 
x r e p o r t - e m a c s - b u g <return>

Recent messages:
Wrote c:/users/pwisnovsky/.emacs
call-interactively: Quit
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