From 19ebdcfb377e76147f406272d51c64ede643abe9 Mon Sep 17 00:00:00 2001
From: Johannes Meyer <johannes.meyer@netways.de>
Date: Fri, 18 Sep 2015 12:20:44 +0200
Subject: [PATCH] NavigationConfigForm: Fix method getFlattenedChildren()

refs #5600
---
 application/forms/Navigation/NavigationConfigForm.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/application/forms/Navigation/NavigationConfigForm.php b/application/forms/Navigation/NavigationConfigForm.php
index 838beb68a..3f0269fbe 100644
--- a/application/forms/Navigation/NavigationConfigForm.php
+++ b/application/forms/Navigation/NavigationConfigForm.php
@@ -227,8 +227,8 @@ class NavigationConfigForm extends ConfigForm
         }
 
         $children = array();
-        foreach ($config as $sectionName => $sectionConfig) {
-            if ($sectionConfig->parent === $name) {
+        foreach ($config->toArray() as $sectionName => $sectionConfig) {
+            if (isset($sectionConfig['parent']) && $sectionConfig['parent'] === $name) {
                 $children[] = $sectionName;
                 $children = array_merge($children, $this->getFlattenedChildren($sectionName));
             }