Index: trunk/src/wp-includes/script-loader.php
===================================================================
--- trunk/src/wp-includes/script-loader.php	(revision 29025)
+++ trunk/src/wp-includes/script-loader.php	(revision 29049)
@@ -460,4 +460,6 @@
 		) );
 
+		$scripts->add( 'editor-expand', "/wp-admin/js/editor-expand$suffix.js", array( 'jquery' ), false, 1 );
+
 		$scripts->add( 'link', "/wp-admin/js/link$suffix.js", array( 'wp-lists', 'postbox' ), false, 1 );