Add an edited tweet into the history without text properties.

* twittering-mode.el: Add an edited tweet into the history without
text properties.
(twittering-edit-extract-status): extract a status without text
properties. They may cause `session.el' to fail to save
`twittering-edit-history' because
`twittering-make-clickable-status-datum' adds text properties with
self-reference to tweets.

ChangeLog

@@ -1,3 +1,13 @@
+2010-09-12  Tadashi MATSUO  <tad@mymail.twin.jp>
+
+	* twittering-mode.el: Add an edited tweet into the history without
+	text properties.
+	(twittering-edit-extract-status): extract a status without text
+	properties. They may cause `session.el' to fail to save
+	`twittering-edit-history' because
+	`twittering-make-clickable-status-datum' adds text properties with
+	self-reference to tweets.
+
 2010-09-04  Tadashi MATSUO  <tad@mymail.twin.jp>
 
 	* twittering-mode.el (twittering-push-uri-onto-kill-ring): avoid

twittering-mode.el

@@ -3710,7 +3710,7 @@ been initialized yet."
 
 (defun twittering-edit-extract-status ()
   (if (eq major-mode 'twittering-edit-mode)
-      (buffer-string)
+      (buffer-substring-no-properties (point-min) (point-max))
     ""))
 
 (defun twittering-edit-setup-help (&optional username spec)