From e55cf70e3584005511fdeed48839a8fe5586f884 Mon Sep 17 00:00:00 2001
From: markjaquith <markjaquith@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Wed, 18 Aug 2010 06:50:53 +0000
Subject: [PATCH] Do not attempt to clear post cache for post ID 0... that will
 recursively destroy your server

git-svn-id: http://svn.automattic.com/wordpress/trunk@15503 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/post.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/wp-includes/post.php b/wp-includes/post.php
index 6d9d554be..08b2b4512 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -4019,6 +4019,9 @@ function clean_post_cache($id) {
 
 	$id = (int) $id;
 
+	if ( 0 === $id )
+		return;
+
 	wp_cache_delete($id, 'posts');
 	wp_cache_delete($id, 'post_meta');