bug#2231: 23.0.90; rmail -- automatic filtering refilters marked messages...

When using rmail and automatic filtering, the filtering rules ignore
the fact that a message has been marked as read.  Thus, if you look at
a message multiple times, rmail will refilter it.


In GNU Emacs 23.0.90.1 (i686-pc-linux-gnu, GTK+ Version 2.12.11)
 of 2009-02-03 on beryx
Windowing system distributor `The X.Org Foundation', version 11.0.10402000
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.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: EShell

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
M-x r m a i l <return> y h p n d M-x e s h <return> 
l s SPC - l a SPC R M A I L . i n <tab> a m <tab> g 
n u <tab> <return> C-x b <return> p n p n p n p n C-x 
b <return> <up> <return> M-x <up> C-k r e p o <tab> 
r <tab> <return>

Recent messages:
Loading em-hist...done
Loading em-ls...done
Loading em-prompt...done
Loading em-script...done
Loading em-term...done
Loading em-unix...done
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