(message-yank-original): Fix bug:

Don't switch point and mark unnecessarily.

lisp/gnus/ChangeLog

+2007-03-27  Thien-Thi Nguyen  <ttn@gnu.org>
+
+	* message.el (message-yank-original): Fix bug:
+	Don't switch point and mark unnecessarily.
+
 2007-03-20  Andreas Seltenreich  <uwi7@rz.uni-karlsruhe.de>
 
 	* message.el (message-required-news-headers):

lisp/gnus/message.el

@@ -3349,7 +3349,8 @@ prefix, and don't delete any headers."
 		   (point)))
       (unless arg
 	(funcall message-cite-function))
-      (message-exchange-point-and-mark)
+      (unless (< (point) (mark-marker))
+        (message-exchange-point-and-mark))
       (unless (bolp)
 	(insert ?\n))
       (unless modified