You can retweet your own tweets.

* twittering-mode.el: You can retweet your own tweets.
(twittering-native-retweet): retweet the given tweet without
regard to its author.

ChangeLog

@@ -1,3 +1,9 @@
+2016-06-17  Tadashi MATSUO  <tad@mymail.twin.jp>
+
+	* twittering-mode.el: You can retweet your own tweets.
+	(twittering-native-retweet): retweet the given tweet without
+	regard to its author.
+
 2016-03-14  Tadashi MATSUO  <tad@mymail.twin.jp>
 
 	* twittering-mode.el: Render an ampersand as it is posted. An

NEWS

@@ -51,6 +51,8 @@
     can be posted without errors, a tweet consisting of 116 and 24
     numeric characters causes the following error;
     "Status is over 140 characters."
+* Retweeting your own tweet.
+  You can retweet your own tweet.
 
 ### Bug fixes
 * Fix of invoking a hook twice for the same timeline.

NEWS.ja

@@ -48,6 +48,8 @@
   - 115個の"&"と25個の数字からなるtweetは投稿可能ですが、116個の"&"と
     24個の数字からなるtweetは"Status is over 140 characters."のエラー
     が起こり投稿できません。
+* 自分自身のtweetのretweet
+  自分が投稿したtweetをretweetできるようになりました。
 
 ### バグ修正
 * 同一のtimelineに対してhookが二重に実行されるバグを修正

twittering-mode.el

@@ -11846,7 +11846,6 @@ How to edit a tweet is determined by `twittering-update-status-funcion'."
   (interactive)
   (let ((id (get-text-property (point) 'id))
 	(text (copy-sequence (get-text-property (point) 'text)))
-	(user (get-text-property (point) 'username))
 	(width (max 40 ;; XXX
 		    (- (frame-width)
 		       1 ;; margin for wide characters
@@ -11855,17 +11854,15 @@ How to edit a tweet is determined by `twittering-update-status-funcion'."
 		    )))
     (set-text-properties 0 (length text) nil text)
     (if id
-	(if (not (string= user twittering-username))
-	    (let ((mes (format "Retweet \"%s\"? "
-			       (if (< width (string-width text))
-				   (concat
-				    (truncate-string-to-width text (- width 3))
-				    "...")
-				 text))))
-	      (if (y-or-n-p mes)
-		  (twittering-call-api 'retweet `((id . ,id)))
-		(message "Request canceled")))
-	  (message "Cannot retweet your own tweet"))
+	(let ((mes (format "Retweet \"%s\"? "
+			   (if (< width (string-width text))
+			       (concat
+				(truncate-string-to-width text (- width 3))
+				"...")
+			     text))))
+	  (if (y-or-n-p mes)
+	      (twittering-call-api 'retweet `((id . ,id)))
+	    (message "Request canceled")))
       (message "No status selected"))))
 
 ;;;; Commands for browsing information related to a status