From f4a752a2f1e76dbb970b9aa7d0fa6588f46d169c Mon Sep 17 00:00:00 2001
From: Henning Bostelmann <henning.bostelmann@york.ac.uk>
Date: Sat, 3 Dec 2016 15:30:12 +0000
Subject: [PATCH] MDL-45873 mode_data: Allow "0" entries in menu field

---
 mod/data/field/menu/field.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod/data/field/menu/field.class.php b/mod/data/field/menu/field.class.php
index d6e1de3151b..7e6fdf994e5 100644
--- a/mod/data/field/menu/field.class.php
+++ b/mod/data/field/menu/field.class.php
@@ -50,7 +50,7 @@ class data_field_menu extends data_field_base {
         $rawoptions = explode("\n",$this->field->param1);
         foreach ($rawoptions as $option) {
             $option = trim($option);
-            if ($option) {
+            if (strlen($option) > 0) {
                 $options[$option] = $option;
             }
         }