From ca3a660532b1fd850b58b5c9502e2fc31718f0e7 Mon Sep 17 00:00:00 2001
From: nathangray <nathangray.bsc+github@gmail.com>
Date: Wed, 2 Aug 2017 11:14:31 -0600
Subject: [PATCH] Allow group pseudo-distribution lists

---
 calendar/inc/class.calendar_bo.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/calendar/inc/class.calendar_bo.inc.php b/calendar/inc/class.calendar_bo.inc.php
index 6e658bd8e9..1d74373c3f 100644
--- a/calendar/inc/class.calendar_bo.inc.php
+++ b/calendar/inc/class.calendar_bo.inc.php
@@ -382,7 +382,7 @@ class calendar_bo
 	{
 		$contact_list = array();
 		$contacts = new Api\Contacts();
-		if($contacts->check_list((int)substr($id,1), ACL::READ))
+		if($contacts->check_list((int)substr($id,1), ACL::READ) || (int)substr($id,1) < 0)
 		{
 			$options = array('list' => substr($id,1));
 			$lists = $contacts->search('',true,'','','',false,'AND',false,$options);