From a89d307726ae6a971d1b9c68aeabbc69c02220a8 Mon Sep 17 00:00:00 2001
From: Andrew Nacin <nacin@git.wordpress.org>
Date: Tue, 24 Apr 2012 14:41:23 +0000
Subject: [PATCH] Fix a notice in [20565] where get_the_author_meta() may be
 called prior to postdata from being set up. In this case, the function should
 return nothing (via the filter). props johnjamesjacoby. fixes #20529. see
 #20285.

git-svn-id: https://develop.svn.wordpress.org/trunk@20575 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/author-template.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-includes/author-template.php b/wp-includes/author-template.php
index 801dce9a29..48db8f9253 100644
--- a/wp-includes/author-template.php
+++ b/wp-includes/author-template.php
@@ -99,7 +99,7 @@ function the_modified_author() {
 function get_the_author_meta( $field = '', $user_id = false ) {
 	if ( ! $user_id ) {
 		global $authordata;
-		$user_id = $authordata->ID;
+		$user_id = isset( $authordata->ID ) ? $authordata->ID : 0;
 	} else {
 		$authordata = get_userdata( $user_id );
 	}