From de83c2db51b252336b33e9f06ebf736978a395f5 Mon Sep 17 00:00:00 2001
From: Mark Jaquith <markjaquith@git.wordpress.org>
Date: Wed, 27 Jun 2007 23:28:36 +0000
Subject: [PATCH] Mark pingback as already pinged when the target site says it
 already got the pingback.  props mdawaffe.  fixes #4289

git-svn-id: https://develop.svn.wordpress.org/trunk@5772 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/comment.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-includes/comment.php b/wp-includes/comment.php
index a3cfb50205..4a27fedb32 100644
--- a/wp-includes/comment.php
+++ b/wp-includes/comment.php
@@ -740,7 +740,7 @@ function pingback($content, $post_ID) {
 			// when set to true, this outputs debug messages by itself
 			$client->debug = false;
 
-			if ( $client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto ) )
+			if ( $client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto) || ( isset($client->error->code) && 48 == $client->error->code ) ) // Already registered
 				add_ping( $post_ID, $pagelinkedto );
 		}
 	}