Rmail: rmail-enable-mime is causing troubles

[Xavier Maillard]

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

When setting rmail-enable-mime in my .emacs to t, I get a backtrace when I try
to display a message like this one:

Debugger entered--Lisp error: (void-function nil)
  nil()
  rmail-show-message(372)
  rmail-summary-goto-msg(nil)
  call-interactively(rmail-summary-goto-msg)

It does it whatever the message is.

In GNU Emacs 22.0.50.1 (i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2006-01-03 on pacem, modified by Debian
X server distributor `The X.Org Foundation', version 11.0.60900000
configured using `configure '--build' 'i486-linux-gnu' '--host' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/22.0.50/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/22.0.50/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/22.0.50/leim'
 '--with-x=yes' '--with-x-toolkit=athena' '--with-toolkit-scroll-bars' 
'CFLAGS=-DDEBIAN -g -Wno-pointer-sign -O2' 'build_alias=i486-linux-gnu' 
'host_alias=i486-linux-gnu''

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
  locale-coding-system: iso-8859-1
  default-enable-multibyte-characters: t

Major mode: RMAIL Summary

Minor modes in effect:
  display-time-mode: t
  auto-insert-mode: t
  icomplete-mode: t
  partial-completion-mode: t
  show-paren-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  temp-buffer-resize-mode: t
  column-number-mode: t
  line-number-mode: t
  abbrev-mode: t

Recent input:
C-x C-e C-x C-s C-x C-b <down> <down> <down> <down> 
<return> h d <up> <up> <up> C-x 1 h <down> <down> <down> 
<down> <down> <down> <return> d C-h v e <backspace> 
r m a i l - e n <tab> a <tab> m <backspace> i <tab> 
<return> <down> <down> <up> <up> <up> <up> <return> 
<up> C-x 1 <down> <down> <down> <down> C-x 1 h <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <return> 
t q M-x r e p o r t <tab> b u g <return>

Recent messages:
Saving file /home/zedek/src/etc-devel/emacs/emacs.el...
Wrote /home/zedek/src/etc-devel/emacs/emacs.el
Computing summary lines...done
Computing summary lines...done
Type M-x switch-to-buffer-other-window RET to restore the other window.  
Computing summary lines...done
Entering debugger...
Killed inactive buffer: *Help*.
Back to top level.
Loading emacsbug...done