From 9f65a05d470ee9e2ca797ce26f09acb4dcef9b5c Mon Sep 17 00:00:00 2001
From: Jan Schneider <jan@horde.org>
Date: Thu, 14 Jan 2016 14:51:08 +0100
Subject: [PATCH] Loosen the the test for the date format (Bug #14130).

Theoretically it might have been intended to explicitly pass an empty string (as opposed to a null value) as the date format. But this doesn't make sense because that would generate a form field that never has a result value. Beside that we already *do* catch an empty value, even if it's a strict null check.
---
 framework/Form/lib/Horde/Form/Type.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/framework/Form/lib/Horde/Form/Type.php b/framework/Form/lib/Horde/Form/Type.php
index e7dde7d33c7..efc0b62c762 100644
--- a/framework/Form/lib/Horde/Form/Type.php
+++ b/framework/Form/lib/Horde/Form/Type.php
@@ -3021,7 +3021,7 @@ function _validateAndFormat($value, &$var)
             return $var->getDefault();
         } else {
             $date = $this->getDateOb($value);
-            if ($this->_format_in === null) {
+            if (!strlen($this->_format_in)) {
                 return $date->timestamp();
             } else {
                 return $date->strftime($this->_format_in);