gnus summary buffer mouse mime viewing causes an extra article download

[Daniel Ortmann]

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In GNU Emacs 21.1.2 (i386--freebsd, X toolkit, Xaw3d scroll bars)
 of 2001-11-19 on pyrl.eye
configured using `configure  --prefix=/usr/local i386--freebsd'
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
  locale-coding-system: nil
  default-enable-multibyte-characters: t

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

Steps:

1) Start emacs and gnus and enter the summary buffer of any newsgroup
   which has mime posts of images.

2) Press enter on an article with mime content and wait for the article
   to be fetched.  (Note that the cursor is still in the summary
   buffer.)

3) When the mime line is displayed in the article, use the 3rd mouse
   button on that mime line to select the menuitem to toggle the display
   of the mime piece.  (The image should be displayed.)

4) Close the image.  (Note that the cursor is in the article buffer.)

5) C-x o to switch the cursor back to the summary buffer's line.  Your
   cursor should still be on the article that you just read.

6) Now press o to save the article.

Result:

The article is downloaded a second time.

Expected:

I expected that the article would be instantly saved since the entire
contents are in the current article buffer.

Recent input:
M-x r e p o r t TAB RET

Recent messages:
Loading time...done
Loading /usr/local/libexec/emacs/21.1/i386--freebsd/fns-21.1.2.el 
(source)...done
Loading font-lock...
Loading regexp-opt...done
Loading font-lock...done
Loading jka-compr...done
Loading server...done
Loading hscroll...done
For information about the GNU Project and its goals, type C-h C-p.
Loading emacsbug...done

-- 
Daniel Ortmann, 2414 30 Av NW, #D, Rochester, MN 55901
ortmann@isl.net (h)   / 507.288.7732 (h)
dortmann@lsil.com (w) / 507.529.3887 (w)