Index: wp-includes/query.php
===================================================================
--- wp-includes/query.php	(revision 13115)
+++ wp-includes/query.php	(working copy)
@@ -2280,7 +2280,7 @@
 					// User must be logged in to view unpublished posts.
 					$this->posts = array();
 				} else {
-					if  (in_array($status, array('draft', 'pending')) ) {
+					if  (in_array($status, array('draft', 'pending', 'trash')) ) {
 						// User must have edit permissions on the draft to preview.
 						if (! current_user_can("edit_$post_type_cap", $this->posts[0]->ID)) {
 							$this->posts = array();