Ticket #13753: 13753-make-ref-safe.diff

wp-includes/post.php

@@ -369 +369 @@
                 wp_cache_add($post->ID, $_post, 'posts');
         } else {
                 if ( is_object($post) )
-                        $post = $post->ID;
-                $post = (int) $post;
-                if ( ! $_post = wp_cache_get($post, 'posts') ) {
-                        $_post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d LIMIT 1", $post));
+                        $post_id = $post->ID;
+                else
+                        $post_id = $post;
+
+                $post_id = (int) $post_id;
+                if ( ! $_post = wp_cache_get($post_id, 'posts') ) {
+                        $_post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d LIMIT 1", $post_id));
                         if ( ! $_post )
                                 return $null;
                         _get_post_ancestors($_post);