Problems with rectangles and rect-mark package

[Mickey Ferguson]

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In GNU Emacs 21.1.1 (i386-msvc-nt4.0.1381)
 of 2001-11-01 on MFERGUSON_NT
configured using `configure --with-msvc (12.00)'
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: ENU
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

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

Whenever I try to use picture-mode, leave it, and then try to work with
rectangles, I get an error message and it doesn't perform the operation.
I've broken down my .emacs to the lines that cause the problem.  (I have no
idea where they came from, probably a suggestion from someone to solve some
problem from the past...)  With no init file of any kind, and then
evaluating the code below, the problem can be recreated.

Specifically, all you have to do is start up emacs with -q, paste the code
below into a scratch buffer and evaluate the region (code).  Then set mark,
move to the next line and move one column over, hit C-x r o (to open the
rectangle.  It works fine.  Then use M-x picture-mode to enter picture mode,
hit C-c C-c to exit picture mode, and try again to open a rectangle.  You
will get the error message below.

Here's the offending code:
=====================================================================
;; One vision of a better picture mode.
(add-hook 'picture-mode-hook 'rm-example-picture-mode-bindings)
(autoload 'rm-example-picture-mode-bindings "rect-mark"
  "Example rect-mark key and mouse bindings for picture mode.")
=====================================================================

Recent input:
/ s i t SPC SPC m f SPC t SPC SPC <return> C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-SPC C-n C-n 
C-n C-n M-x e v a l - b u f SPC <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> r e 
g SPC <return> C-x C-x C-x C-x C-p C-f C-x C-x C-x 
r o C-x u M-x p i c t u r e - m o d SPC <return> C-c 
C-c C-x C-x C-x C-x C-x r o M-x r e p o r t - e m SPC 
SPC <return>

Recent messages:
Loading image...done
Mark set
Loading rect...done
Undo!
Loading picture...done

Loading rect-mark...done
Type C-c C-c in this buffer to return it to Emacs-Lisp mode.
open-rectangle-line: Wrong number of arguments: #[(column) "Â Ã]Ä\"^Å )?"
[deactivate-mark column move-to-column 0 t hscroll-point-visible] 3], 2
Loading emacsbug...done