From f100e9bd09ee42d5a29d05a9f1b858d6655e327f Mon Sep 17 00:00:00 2001
From: Eric <eric.espie@combodo.com>
Date: Wed, 16 Sep 2020 17:57:38 +0200
Subject: [PATCH] =?UTF-8?q?N=C2=B02957=20-=20allow=20empty=20class=20param?=
 =?UTF-8?q?eter?=
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---
 application/utils.inc.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/application/utils.inc.php b/application/utils.inc.php
index 7e29569c16..589916f4cf 100644
--- a/application/utils.inc.php
+++ b/application/utils.inc.php
@@ -296,8 +296,7 @@ class utils
 
 			case 'class':
 				$retValue = $value;
-				if (!MetaModel::IsValidClass($value))
-				{
+				if (($value != '') && !MetaModel::IsValidClass($value)) {
 					throw new CoreException(Dict::Format('UI:OQL:UnknownClassNoFix', utils::HtmlEntities($value)));
 				}
 				break;