From 6ca804ee7652d87c9aca35d4efcf37ab3e69768b Mon Sep 17 00:00:00 2001
From: Andrew Nacin <wp@andrewnacin.com>
Date: Sat, 29 Mar 2014 06:08:15 +0000
Subject: [PATCH] Avoid infinite recursion in get_term_children() when a term
 is incorrectly a parent of itself.

props kovshenin.
fixes #27123.

Built from https://develop.svn.wordpress.org/trunk@27837


git-svn-id: http://core.svn.wordpress.org/trunk@27671 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/taxonomy.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/wp-includes/taxonomy.php b/wp-includes/taxonomy.php
index c2312d7f56..df209a50e1 100644
--- a/wp-includes/taxonomy.php
+++ b/wp-includes/taxonomy.php
@@ -1107,6 +1107,10 @@ function get_term_children( $term_id, $taxonomy ) {
 	$children = $terms[$term_id];
 
 	foreach ( (array) $terms[$term_id] as $child ) {
+		if ( $term_id == $child ) {
+			continue;
+		}
+
 		if ( isset($terms[$child]) )
 			$children = array_merge($children, get_term_children($child, $taxonomy));
 	}