appointment display during isearch replaces buffer contents with history-element

[Martin Fischer <parozusa@web.de>]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

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

  8<-------------------------------------------------------------------

  Start isearch-forward, type M-p and scroll the history buffer with
  <up> (previous-history-element).

  If at the same time emacs tries to display an appointment in the
  same frame, the contents of the buffer, where you wanted to isearch,
  is replaced by one of the history elements.

  The buffer may be restored by undo.

  8<-------------------------------------------------------------------

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
d:/aemf/emacs/etc/DEBUG for instructions.


In GNU Emacs 22.1.1 (i386-mingw-nt5.1.2600)
 of 2007-06-02 on RELEASE
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --cflags -Ic:/gnuwin32/include'

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: DEU
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  encoded-kbd-mode: t
  tooltip-mode: t
  tool-bar-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
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
C-w <right> C-s C-w <right> C-s C-w <right> <f6> <f6> 
<f6> <f6> <f6> <f6> <f6> <lwindow> | <C-kp-2> <C-kp-2> 
<C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> 
<C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> 
<C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> <C-kp-2> 
<tab> <help-echo> <escape> x <up> <up> <return> <up> 
<up> C-e <backspace> <backspace> 4 5 <return> t e s 
t 1 <return> <escape> x <up> <up> <return> <escape> 
x <up> <return> C-x 1 <escape> x <up> <return> <escape> 
x <up> <return> <help-echo> <help-echo> <escape> <f12> 
<help-echo> <escape> x <up> <up> <return> 1 4 : 5 4 
<backspace> 5 <return> t e s t 2 <backspace> 3 <return> 
<escape> x <up> <up> <return> C-s <escape> p <up> <up> 
<up> <up> <up> <up> <down> <down> <down> <down> <down> 
<down> <down> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> C-s C-w <right> C-s C-w 
<right> C-s C-w <right> C-s C-w <right> C-s C-w <right> 
C-s C-w <right> C-s C-w <right> C-s C-w <right> C-s 
C-w <right> <escape> x <up> <return> C-x 1 <escape> 
x c u s t o m <tab> - v a <tab> <return> a p p t _ 
<tab> <backspace> - <tab> d <tab> i <tab> <tab> a <tab> 
<backspace> l <tab> i <tab> <return> <down-mouse-1> 
<mouse-1> <backspace> 1 <help-echo> <down-mouse-1> 
<lwindow> C-x b <return> C-s <escape> x <up> <up> <return> 
<escape> x <up> <return> C-x 1 C-s <escape> p p <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <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> <help-echo> <help-echo> 
<menu-bar> <help-menu> <report-emacs-bug> C-g <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <menu-bar> <help-menu> <re
port-emacs-bug>

Recent messages:
Loading easymenu...done
Loading cus-edit...done
Loading help-fns...done
Making completion list... [3 times]
Creating customization items...
Creating customization items ...done
Resetting customization items...done
Creating customization setup...done
Preparing diary...done
Mark saved where search started
Quit