From 0d0edecd792c9d0a32b6fc2add9e5ace918a2fc5 Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Fri, 19 Nov 2010 05:06:48 +0000
Subject: [PATCH] Return false if empty cat passed. Restores old behavior.

git-svn-id: https://develop.svn.wordpress.org/trunk@16478 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/category-template.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/wp-includes/category-template.php b/wp-includes/category-template.php
index 3a7d9ae72f..d491a6ceda 100644
--- a/wp-includes/category-template.php
+++ b/wp-includes/category-template.php
@@ -221,6 +221,9 @@ function get_the_category_list( $separator = '', $parents='', $post_id = false )
  * @return bool True if the current post is in any of the given categories.
  */
 function in_category( $category, $post = null ) {
+	if ( empty( $category ) )
+		return false;
+
 	return has_term( $category, 'category', $post );
 }