Ticket #20917: 20917.diff

wp-includes/capabilities.php

@@ -1094 +1094 @@
                 elseif ( $status_obj->private )
                         $caps[] = $post_type->cap->read_private_posts;
                 else
-                        $caps[] = map_meta_cap( 'edit_post', $user_id, $post->ID );
+                        $caps = map_meta_cap( 'edit_post', $user_id, $post->ID );
                 break;
         case 'edit_post_meta':
         case 'delete_post_meta':