Ticket #34825: 34825-2.patch

wp-admin/includes/post.php

@@ -1008 +1008 @@
                 $orderby = $q['orderby'];
         } elseif ( isset( $q['post_status'] ) && in_array( $q['post_status'], array( 'pending', 'draft' ) ) ) {
                 $orderby = 'modified';
-        } elseif ( ! is_post_type_hierarchical( $post_type ) ) {
+        } elseif ( 'post' == $post_type ) {
                 $orderby = 'date';
         }