From 1129a29ef7afbb36bb0660914f5c1842c5da0799 Mon Sep 17 00:00:00 2001
From: Noah Hilverling <noah.hilverling@netways.de>
Date: Mon, 9 Jan 2017 16:56:18 +0100
Subject: [PATCH] Use default values while validating user backend

refs #12295
---
 application/forms/Config/UserBackendConfigForm.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/application/forms/Config/UserBackendConfigForm.php b/application/forms/Config/UserBackendConfigForm.php
index f7d4d15723..4f8d714a12 100644
--- a/application/forms/Config/UserBackendConfigForm.php
+++ b/application/forms/Config/UserBackendConfigForm.php
@@ -354,7 +354,12 @@ public function isValid($formData)
      */
     public static function inspectUserBackend(Form $form)
     {
-        $backend = UserBackend::create(null, new ConfigObject($form->getValues()));
+        $values = array_filter($form->getValues(),
+            function($v) {
+                return $v || $v === 0 || $v === '0';
+            }
+        );
+        $backend = UserBackend::create(null, new ConfigObject($values));
         if ($backend instanceof Inspectable) {
             return $backend->inspect();
         }