From 6afe83e3cae12a56fa23119fa2db95482cfd6f2e Mon Sep 17 00:00:00 2001
From: Andrew Nacin <nacin@git.wordpress.org>
Date: Wed, 5 Mar 2014 01:12:39 +0000
Subject: [PATCH] In set_theme_mod() account for when there is no old value.

fixes #14721. see [27393].


git-svn-id: https://develop.svn.wordpress.org/trunk@27402 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/theme.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wp-includes/theme.php b/src/wp-includes/theme.php
index 473b9956cf..054de58fb9 100644
--- a/src/wp-includes/theme.php
+++ b/src/wp-includes/theme.php
@@ -913,7 +913,7 @@ function get_theme_mod( $name, $default = false ) {
  */
 function set_theme_mod( $name, $value ) {
 	$mods = get_theme_mods();
-	$old_value = $mods[ $name ];
+	$old_value = isset( $mods[ $name ] ) ? $mods[ $name ] : false;
 
 	/**
 	 * Filter the theme mod value on save.