From 814755a2d7cc90413abd4936180f7b38c159f563 Mon Sep 17 00:00:00 2001
From: Nicolas Goaziou <n.goaziou@gmail.com>
Date: Mon, 22 Jul 2013 16:06:47 +0200
Subject: [PATCH] ox: Fix small bug

* lisp/ox.el (org-export--get-inbuffer-options): Fix small bug
  introduced in 908d42c9b68257ed122073b29d7ada02b3d120fa.
---
 lisp/ox.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/ox.el b/lisp/ox.el
index e1e79c8f7..9353f1d47 100644
--- a/lisp/ox.el
+++ b/lisp/ox.el
@@ -1664,7 +1664,7 @@ Assume buffer is in Org mode.  Narrowing, if any, is ignored."
 	    (let (properties)
 	      (dolist (option options properties)
 		(when (equal (nth 1 option) keyword)
-		  (push (car option) properties))))))
+		  (pushnew (car option) properties))))))
 	 (get-options
 	  (lambda (&optional files plist)
 	    ;; Recursively read keywords in buffer.  FILES is a list