From 3e917ac75f0bc10658dcb5acce964b32e6c5ab94 Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov.ru@gmail.com>
Date: Mon, 28 Jan 2013 02:55:06 +0000
Subject: [PATCH] Make sure the post exists before checking its ID. fixes
 #23026.

git-svn-id: http://core.svn.wordpress.org/trunk@23351 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/includes/template.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-admin/includes/template.php b/wp-admin/includes/template.php
index 788a4bd55f..9f6833c5d3 100644
--- a/wp-admin/includes/template.php
+++ b/wp-admin/includes/template.php
@@ -680,7 +680,7 @@ function parent_dropdown( $default = 0, $parent = 0, $level = 0 ) {
 	if ( $items ) {
 		foreach ( $items as $item ) {
 			// A page cannot be its own parent.
-			if ( $post->ID && $item->ID == $post->ID )
+			if ( $post && $post->ID && $item->ID == $post->ID )
 				continue;
 
 			$pad = str_repeat( '&nbsp;', $level * 3 );