From 99119ea96bb94a4da056f8c1af20ee56a5bf9cc5 Mon Sep 17 00:00:00 2001
From: Roland Gruber <post@rolandgruber.de>
Date: Sat, 27 Apr 2013 17:37:04 +0000
Subject: [PATCH] fixed multi-value validation

---
 lam/lib/baseModule.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lam/lib/baseModule.inc b/lam/lib/baseModule.inc
index 096849e4..b2d8eea6 100644
--- a/lam/lib/baseModule.inc
+++ b/lam/lib/baseModule.inc
@@ -1247,7 +1247,7 @@ abstract class baseModule {
 		$counter = 0;
 		while (isset($_POST[$attrName . '_' . $counter])) {
 			$this->attributes[$attrName][$counter] = $_POST[$attrName . '_' . $counter];
-			if (($validationID != null) && !get_preg($this->attributes[$attrName][$counter], $validationID)) {
+			if (($validationID != null) && ($this->attributes[$attrName][$counter] != '') && !get_preg($this->attributes[$attrName][$counter], $validationID)) {
 				$errors[] = $this->messages[$attrName][0];
 			}
 			if ($this->attributes[$attrName][$counter] == '') {