Index: wp-admin/includes/class-wp-terms-list-table.php
===================================================================
--- wp-admin/includes/class-wp-terms-list-table.php	(revision 19415)
+++ wp-admin/includes/class-wp-terms-list-table.php	(working copy)
@@ -283,13 +283,15 @@
 	}
 
 	function column_posts( $tag ) {
-		global $taxonomy, $post_type;
+		global $taxonomy;
 
 		$count = number_format_i18n( $tag->count );
 
 		$tax = get_taxonomy( $taxonomy );
 
+		$post_type = get_current_screen()->post_type;
 		$ptype_object = get_post_type_object( $post_type );
+
 		if ( ! $ptype_object->show_ui )
 			return $count;
 
Index: wp-admin/includes/screen.php
===================================================================
--- wp-admin/includes/screen.php	(revision 19415)
+++ wp-admin/includes/screen.php	(working copy)
@@ -446,7 +446,7 @@
 		$base = $id;
 
 		// If this is the current screen, see if we can be more accurate for post types and taxonomies.
-		if ( ! $hook_name ) {
+		if ( true ) {
 			if ( isset( $_REQUEST['post_type'] ) )
 				$post_type = post_type_exists( $_REQUEST['post_type'] ) ? $_REQUEST['post_type'] : false;
 			if ( isset( $_REQUEST['taxonomy'] ) )