From aded8d1f438d5244739e0bdcdb64f5e603ad4727 Mon Sep 17 00:00:00 2001
From: Frode Petterson <frode.andre.petterson@gmail.com>
Date: Wed, 27 May 2015 10:11:01 +0200
Subject: [PATCH] Avoid errors. Merged in from D7.

---
 h5p.classes.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/h5p.classes.php b/h5p.classes.php
index d83dd5e..e22e291 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -2893,6 +2893,10 @@ class H5PContentValidator {
       }
     }
     if (!(isset($semantics->optional) && $semantics->optional)) {
+      if ($group === NULL) {
+        // Error no value. Errors aren't printed...
+        return;
+      }
       foreach ($semantics->fields as $field) {
         if (!(isset($field->optional) && $field->optional)) {
           // Check if field is in group.