From 5c9ad3ec9bad0399314195855ebc57429e67a94f Mon Sep 17 00:00:00 2001
From: Laurent Destailleur <eldy@destailleur.fr>
Date: Sun, 27 Sep 2020 18:55:09 +0200
Subject: [PATCH] Update files.lib.php

---
 htdocs/core/lib/files.lib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/htdocs/core/lib/files.lib.php b/htdocs/core/lib/files.lib.php
index ddd20159e09..2d126b4e4f7 100644
--- a/htdocs/core/lib/files.lib.php
+++ b/htdocs/core/lib/files.lib.php
@@ -2992,7 +2992,7 @@ function dol_check_secure_access_document($modulepart, $original_file, $entity,
 			if ($partofdirinoriginalfile && ($fuser->rights->$modulepart->$partofdirinoriginalfile->{$lire} || $fuser->rights->$modulepart->$partofdirinoriginalfile->{$read})) $accessallowed = 1;
 			if ($fuser->rights->$modulepart->{$lire} || $fuser->rights->$modulepart->{$read}) $accessallowed = 1;
 			//}
-			if (is_array($conf->$modulepart->multidir_output) && array_key_exists($entity, $conf->$modulepart->multidir_output)) {
+			if (is_array($conf->$modulepart->multidir_output) && !empty($conf->$modulepart->multidir_output[$entity])) {
 				$original_file = $conf->$modulepart->multidir_output[$entity].'/'.$original_file;
 			} else {
 				$original_file = $conf->$modulepart->dir_output.'/'.$original_file;