From f7da7d05a19f60bd581697760f6099652e30b50c Mon Sep 17 00:00:00 2001
From: Alex Grintsvayg <grin@lbry.io>
Date: Wed, 7 Sep 2016 22:55:17 -0400
Subject: [PATCH] if mergefields is false or null, make it an array

---
 controller/action/MailActions.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/controller/action/MailActions.class.php b/controller/action/MailActions.class.php
index 8a76ff9f..9f0edd42 100644
--- a/controller/action/MailActions.class.php
+++ b/controller/action/MailActions.class.php
@@ -30,7 +30,7 @@ class MailActions extends Actions
     else
     {
       $mcListId = $_POST['listId'];
-      $mergeFields = isset($_POST['mergeFields']) ? unserialize($_POST['mergeFields']) : [];
+      $mergeFields = isset($_POST['mergeFields']) ? (unserialize($_POST['mergeFields']) ?: []) : [];
       try
       {
         static::subscribeToMailchimp($email, $mcListId, $mergeFields);