Index: post.php
===================================================================
--- post.php	(revision 20170)
+++ post.php	(working copy)
@@ -4037,7 +4037,7 @@
 		$icon_files = wp_cache_get('icon_files');
 
 		if ( !is_array($icon_files) ) {
-			$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/crystal' );
+			$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/crystal', $post_id );
 			$icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url('images/crystal') );
 			$dirs = apply_filters( 'icon_dirs', array($icon_dir => $icon_dir_uri) );
 			$icon_files = array();