Index: trunk/wp-includes/script-loader.php
===================================================================
--- trunk/wp-includes/script-loader.php	(revision 19339)
+++ trunk/wp-includes/script-loader.php	(revision 19342)
@@ -434,5 +434,5 @@
 	$no_suffix = array( 'farbtastic' );
 
-	$styles->add( 'wp-admin', "/wp-admin/css/wp-admin$suffix.css", array(), '20111118' );
+	$styles->add( 'wp-admin', "/wp-admin/css/wp-admin$suffix.css", array(), '20111118a' );
 
 	$styles->add( 'ie', "/wp-admin/css/ie$suffix.css", array(), '20111015' );