bug#2600: 23.0.91; selecting and deselecting nxml

I selected 'nxml-mode' in a buffer with text in it. The file contains no valid xml, so most of the text gets underlined in red. After switching back to 'text-mode', the invalid xml still gets underlined.

I could not find an obvious way to turn it off.



In GNU Emacs 23.0.91.1 (x86_64-pc-linux-gnu, GTK+ Version 2.12.11)
 of 2009-02-27 on andal
Windowing system distributor `The X.Org Foundation', version 11.0.10503000
configured using `configure  '--prefix=/usr' '--host=x86_64-pc-linux-gnu' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib' '--program-suffix=-emacs-23' '--infodir=/usr/share/info/emacs-23' '--with-sound' '--with-x' '--without-toolkit-scroll-bars' '--with-gif' '--with-jpeg' '--with-png' '--with-rsvg' '--with-tiff' '--with-xpm' '--with-freetype' '--with-xft' '--without-libotf' '--without-m17n-flt' '--with-x-toolkit=gtk' '--without-hesiod' '--without-kerberos' '--without-kerberos5' '--with-gpm' '--with-dbus' '--libdir=/usr/lib64' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=x86_64-pc-linux-gnu' 'CFLAGS=-march=native -mtune=native -O2 -pipe' 'LDFLAGS=-Wl,-O1''

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: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Change Log

Minor modes in effect:
  show-paren-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-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:
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <escape> x n x <tab> <tab> m p <tab> <backspace> 
<tab> <return> <escape> x t e <tab> x <tab> t <tab> 
m p <tab> <backspace> <tab> <return> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <escape> x c h e <tab> <backspace> <backspace> 
<backspace> q <tab> <tab> <backspace> a <tab> <backspace> 
<tab> <tab> o <tab> <return> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <help-echo> <down-mouse-1> <help-echo> <help-echo> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <help-echo> <help-echo> <mouse-movement> 
<mouse-movement> <drag-mouse-1> <down-mouse-1> <mouse-1> 
<down-mouse-1> <mouse-movement> <mouse-movement> <help-echo> 
<mouse-movement> <help-echo> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <help-echo> <mouse-movement> 
<help-echo> <drag-mouse-1> <help-echo> <down-mouse-1> 
<mouse-1> <help-echo> <down-mouse-1> <mouse-movement> 
<mouse-movement> <help-echo> <mouse-movement> <help-echo> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<help-echo> <help-echo> <mouse-movement> <drag-mouse-1> 
<down-mouse-1> <mouse-1> <help-echo> <down-mouse-1> 
<help-echo> <help-echo> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <help-echo> <mouse-movement> 
<mouse-movement> <help-echo> <drag-mouse-1> <down-mouse-1> 
<mouse-1> <help-echo> <escape> x r e p o <tab> r t 
<tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Quit
Note: file is write protected
View mode: type C-h for help, h for commands, q to quit.
Note: file is write protected
View mode: type C-h for help, h for commands, q to quit.
Successfully flipped one bit!
Making completion list...
Using vacuous schema
Making completion list... [4 times]