Ticket #20177: query-missing-page-type.diff

wp-includes/query.php

@@ -2757 +2757 @@
                         $this->posts[$i] = sanitize_post( $post, 'raw' );
                 }
 
+                if ( empty( $post_type ) && $this->is_page )
+                        $post_type = $post_type_object->name;
+
                 if ( $q['cache_results'] )
                         update_post_caches($this->posts, $post_type, $q['update_post_term_cache'], $q['update_post_meta_cache']);