From beb253a5c0ddff757ae1ac6f5ace9bdad6d8b2f7 Mon Sep 17 00:00:00 2001
From: Vojta Svoboda <vojtasvoboda.cz@gmail.com>
Date: Wed, 2 Sep 2015 22:43:33 +0200
Subject: [PATCH] Fix evaluate zero value as null

---
 modules/backend/widgets/Lists.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/backend/widgets/Lists.php b/modules/backend/widgets/Lists.php
index 4fb6d9949..52fb3458e 100644
--- a/modules/backend/widgets/Lists.php
+++ b/modules/backend/widgets/Lists.php
@@ -804,7 +804,7 @@ class Lists extends WidgetBase
         /*
          * Apply default value.
          */
-        if (empty($value)) {
+        if (is_null($value)) {
             $value = $column->defaults;
         }