Tabs: Restore anchor cloning for remote tab testing. Fixes #9317 - Tabs: Incorrect remote tab detection in IE7.

Author: scottgonzalez

ui/jquery.ui.tabs.js

@@ -22,6 +22,10 @@ function getNextTabId() {
 }
 
 function isLocal( anchor ) {
+	// support: IE7
+	// IE7 doesn't normalize the href property when set via script (#9317)
+	anchor = anchor.cloneNode( false );
+
 	return anchor.hash.length > 1 &&
 		decodeURIComponent( anchor.href.replace( rhash, "" ) ) ===
 			decodeURIComponent( location.href.replace( rhash, "" ) );