bug#14805: 24.3.50; german umlauts error in sgml/html buffer

["Andreas Röhler" <andreas.roehler@easy-emacs.de>]

Emacs -Q

Opened a buffer with ending ".htm". German umlauts are mangled.

  Börse, which should read Börse


coding-system-for-write nil
and
coding-system-for-read nil

In GNU Emacs 24.3.50.1 (i686-pc-linux-gnu, GTK+ Version 2.24.10)
  of 2013-06-12

Windowing system distributor `The X.Org Foundation', version 11.0.11203000
System Description:	openSUSE 12.2 (i586)

Configured using:
  `configure CFLAGS='-g -O''

Important settings:
   value of $LANG: de_DE.UTF-8
   value of $XMODIFIERS: @im=local
   locale-coding-system: utf-8-unix
   default enable-multibyte-characters: t

Major mode: Help

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

Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar>
<options> <menu-set-font> <help-echo> C-x d i m <tab>
<return> <return> C-s r s e C-s <help-echo> <help-echo>
<help-echo> <help-echo> <down-mouse-1> <drag-mouse-1>
<help-echo> <help-echo> <down-mouse-1> <mouse-movement>
<mouse-movement> <drag-mouse-1> C-x 2 C-h f b u f f
<backspace> <backspace> <backspace> <backspace> c o
d i n g - s y s t <tab> f o <tab> <M-backspace> <M-backspace>
<M-backspace> C-a C-k C-g C-h v C-y f o <tab> r e <tab>
<return> C-x o C-x 2 C-h v <up> C-e <M-backspace> w
r i <tab> <return> <help-echo> <help-echo> <down-mouse-1>
<help-echo> <mouse-movement> <drag-mouse-1> <help-echo>
<down-mouse-1> <help-echo> <mouse-movement> <mouse-movement>
<help-echo> <drag-mouse-1> <help-echo> M-x r e p o
r t _ <backspace> - <tab> <return>

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