Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 13649)
+++ wp-includes/functions.php	(working copy)
@@ -1188,7 +1188,7 @@
 	}
 
 	foreach ( (array) $post_links_temp[0] as $link_test ) {
-		if ( !in_array( $link_test, $pung ) ) { // If we haven't pung it already
+		if ( !in_array( $link_test, $pung ) && 'http://' !== $link_test ) { // If we haven't pung it already
 			$test = parse_url( $link_test );
 			if ( isset( $test['query'] ) )
 				$post_links[] = $link_test;