Merged robustness check from stable

diff --git a/mod/quiz/lib.php b/mod/quiz/lib.php
index 936a7da8eeb397d9a4c025a6e358085f922d0f7f..11de7b15d78b328ab20cc9d155f645ff3b6069e3 100644 (file)
--- a/mod/quiz/lib.php
+++ b/mod/quiz/lib.php
@@ -1046,6 +1046,10 @@ function quiz_print_quiz_questions($quiz, $questions,
 
     foreach ($questions as $question) {
 
+        if (empty($question->qtype)) {    // Just for robustness
+            continue;
+        }
+
         $questionorder[] = $question->id;
 
         if ($results && isset($results->details[$question->id])) {