MDL-17183 "function 'question_get_real_state' fails when response is empty string...

diff --git a/lib/questionlib.php b/lib/questionlib.php
index 476bf3e677a6644996c67c48d5f6b4c669c21970..6d05e41defdba53b45d8575a6b34e90c82d5c622 100644 (file)
--- a/lib/questionlib.php
+++ b/lib/questionlib.php
@@ -2710,7 +2710,7 @@ function get_filesdir_from_context($context){
 function question_get_real_state($state){
     $realstate = clone($state);
     $matches = array();
-    if (!preg_match('|^random([0-9]+)-(.+)|', $state->answer, $matches)){
+    if (!preg_match('|^random([0-9]+)-(.*)|', $state->answer, $matches)){
         notify(get_string('errorrandom', 'quiz_statistics'));
         return false;
     } else {