Strange interaction of cursor movement and post-command-hook?

[David Kastrup]

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
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 address@hidden mailing list.

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

This one is rather new, at most three weeks or so: you can trigger it
by starting in the *scratch* buffer and entering something like:

* Header
junk

as main matter.  Then you do M-x outline-mode RET M-x reveal-mode RET
C-c C-t.  junk will now be replaced by ... . Moving backwards into
this ... will cause the cursor to be positioned _before_ junk instead
of behind it.

If you don't start off the buffer with a valid header (leave off the
first line) and then step backwards into the ... (which then is at
the start of buffer), Emacs will hang very ugly.  It won't react to
C-g except beep.  It _will_ eventually react to C-x k RET: when the
buffer is gone, Emacs gets sane again.

In GNU Emacs 21.3.50.14 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2003-01-04 on lola.goethe.zz
configured using `configure '--prefix=/usr/local/emacs-21' 
'INSTALL_INFO=/sbin/install-info''

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-latin-1
  default-enable-multibyte-characters: t

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum