From 3c7ba3ee6e001ef6815f92c44617b78e187de0cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Yusuf=20C=C3=B6mert?= <yusuf_comert@hotmail.com.tr>
Date: Thu, 7 Apr 2022 17:49:41 +0300
Subject: [PATCH] empty string was breaking filtering

---
 classes/persistents/message.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/classes/persistents/message.php b/classes/persistents/message.php
index 3d6a480b..59fb2fb5 100644
--- a/classes/persistents/message.php
+++ b/classes/persistents/message.php
@@ -242,17 +242,17 @@ public function get_message_recipient_users($status = 'all', $userproperties = '
      */
     public function get_broadcast_draft_recipient_filter() {
         if ($this->get_message_scope() !== 'broadcast') {
-            return '';
+            return array();
         }
 
         $recipients = $this->get_message_draft_recipients();
 
         if (!$recip = reset($recipients)) {
-            return '';
+            return array();
         }
 
         if (!$filter = $recip->get('recipient_filter')) {
-            return '';
+            return array();
         }
 
         return @unserialize($filter);