From 8306f943dd46718e318802283d493ff724554222 Mon Sep 17 00:00:00 2001
From: ryan <ryan@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Mon, 10 Oct 2011 23:14:38 +0000
Subject: [PATCH] Avoid warning when creating new users. fixes #18898

git-svn-id: http://svn.automattic.com/wordpress/trunk@18936 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/user.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wp-includes/user.php b/wp-includes/user.php
index ffcef50ef..d2261e59b 100644
--- a/wp-includes/user.php
+++ b/wp-includes/user.php
@@ -1354,7 +1354,8 @@ function wp_insert_user($userdata) {
 	$user = new WP_User( $user_id );
 
 	foreach ( _get_additional_user_keys( $user ) as $key ) {
-		update_user_meta( $user_id, $key, $$key );
+		if ( isset( $$key ) )
+			update_user_meta( $user_id, $key, $$key );
 	}
 
 	if ( isset($role) )