From 5a121eb723d2a5647937032cec44990a02de4405 Mon Sep 17 00:00:00 2001
From: Roan Kattouw <catrope@users.mediawiki.org>
Date: Mon, 25 Apr 2011 10:17:30 +0000
Subject: [PATCH] Followup r86625: per CR, use loose comparison against null
 instead of typeof foo != 'undefined' because jQuery 1.4 (which MW uses)
 actually returns null for unset .data() keys, but 1.5 returns undefined.

---
 resources/jquery/jquery.collapsibleTabs.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/resources/jquery/jquery.collapsibleTabs.js b/resources/jquery/jquery.collapsibleTabs.js
index 1c68250053..b239972760 100644
--- a/resources/jquery/jquery.collapsibleTabs.js
+++ b/resources/jquery/jquery.collapsibleTabs.js
@@ -49,7 +49,7 @@
 		},
 		addData: function( $collapsible ) {
 			var $settings = $collapsible.parent().data( 'collapsibleTabsSettings' );
-			if ( typeof $settings != 'undefined' ) {
+			if ( $settings != null ) {
 				$collapsible.data( 'collapsibleTabsSettings', {
 					'expandedContainer': $settings.expandedContainer,
 					'collapsedContainer': $settings.collapsedContainer,
@@ -114,4 +114,4 @@
 			$.collapsibleTabs.handleResize();
 		}
 	};
-} )( jQuery );
\ No newline at end of file
+} )( jQuery );
-- 
2.20.1