From 8c51c16803d21d4bce19331ace4381555fc684ff Mon Sep 17 00:00:00 2001
From: dd32 <dd32@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Fri, 19 Aug 2011 14:47:45 +0000
Subject: [PATCH] Only include extra TinyMCE stylesheets once. props
 SergeyBiryukov. Fixes #18456

git-svn-id: http://svn.automattic.com/wordpress/trunk@18571 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/class-wp-editor.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/wp-includes/class-wp-editor.php b/wp-includes/class-wp-editor.php
index ca2fe706bc..fb8ce53493 100644
--- a/wp-includes/class-wp-editor.php
+++ b/wp-includes/class-wp-editor.php
@@ -294,6 +294,7 @@ class WP_Editor {
 				// load editor_style.css if the current theme supports it
 				if ( ! empty( $editor_styles ) && is_array( $editor_styles ) ) {
 					$mce_css = array();
+					$editor_styles = array_unique($editor_styles);
 					$style_uri = get_stylesheet_directory_uri();
 					if ( ! is_child_theme() ) {
 						foreach ( $editor_styles as $file )