Avoid displaying multiple instances of the same feature pointers on a single screen. props nacin. fixes #25022 for trunk.

Built from https://develop.svn.wordpress.org/trunk@25117


git-svn-id: http://core.svn.wordpress.org/trunk@25097 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/template.php

@@ -1815,7 +1815,7 @@ final class WP_Internal_Pointers {
 			});
 
 			setup = function() {
-				$('<?php echo $selector; ?>').pointer( options ).pointer('open');
+				$('<?php echo $selector; ?>').first().pointer( options ).pointer('open');
 			};
 
 			if ( options.position && options.position.defer_loading )