Dragging mode-line doesn't work when mouse-autoselect-window is t

[Klaus Zeitler]

Symptoms:

1. start emacs -q --no-site-file
2. set variable mouse-autoselect-window to t
3. split-window-vertically

now I can drag the modeline only upwards but not downwards


In GNU Emacs 21.3.50.2 (sparc-sun-solaris2.8, Motif Version 2.1.0)
 of 2003-10-16 on sfsws4
configured using `configure '--with-gcc' 
'--prefix=/vol/freeware/SunOS-5.8/emacs/cvs' 
'--sharedstatedir=/vol/freeware/SunOS-5.8/emacs/cvs/share' 
'--with-x-toolkit=motif' 
'--x-includes=/usr/openwin/include:/usr/local/gnu/include' 
'--x-libraries=/usr/openwin/lib:/usr/local/gnu/lib' '--with-pop' 'CC=gcc''

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: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  unify-8859-on-encoding-mode: t
  line-number-mode: t

Recent input:
C-x 2 <help-echo> <down-mouse-1> <mouse-movement> <mouse-1> 
<down-mouse-2> <mouse-2> C-j <select-window> <help-echo> 
<down-mouse-1> <mouse-movement> <mouse-movement> <help-echo> 
<mouse-movement> <drag-mouse-1> <down-mouse-1> <help-echo> 
<mouse-movement> <select-window> <drag-mouse-1> <help-echo> 
<down-mouse-1> <help-echo> <mouse-movement> <select-window> 
<drag-mouse-1> <help-echo> <down-mouse-1> <help-echo> 
<select-window> <drag-mouse-1> <help-echo> <down-mouse-1> 
<help-echo> <mouse-movement> <select-window> <drag-mouse-1> 
<help-echo> <down-mouse-1> <help-echo> <mouse-movement> 
<select-window> <drag-mouse-1> <help-echo> <select-window> 
<help-echo> <help-echo> <select-window> <help-echo> 
<down-mouse-1> <help-echo> <mouse-movement> <mouse-movement> 
<drag-mouse-1> <help-echo> <down-mouse-1> <help-echo> 
<mouse-movement> <select-window> <drag-mouse-1> <help-echo> 
<help-echo> <help-echo> <menu-bar> <help-menu> <re
port-emacs-bug>

Recent messages:
Loading mwheel...done
(/vol/freeware/SunOS-5.8/build/emacs-cvs/src/emacs -q --no-site-file)
Loading tool-bar...done
Loading image...done
Loading tooltip...done
For information about the GNU Project and its goals, type C-h C-p.
Mark set
Loading emacsbug...done