From 9dfd54c8bf0591a4ba41d701bb0dd5199ac8ce47 Mon Sep 17 00:00:00 2001
From: Ra <radabass@users.noreply.github.com>
Date: Sat, 12 Dec 2015 12:21:35 +0100
Subject: [PATCH] In some cases $cf['value'] may not be present.

On some old themes $cf['value'] is not present and will throw eventually an uncontrolled exception.
---
 include/wpml-config.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/wpml-config.php b/include/wpml-config.php
index 1aa2501..b33c266 100644
--- a/include/wpml-config.php
+++ b/include/wpml-config.php
@@ -248,7 +248,8 @@ public function copy_post_metas($metas, $sync) {
 				if ('copy' == $cf['attributes']['action'] || (!$sync && 'translate' == $cf['attributes']['action']))
 					$metas[] = $cf['value'];
 				else
-					$metas = array_diff($metas,  array($cf['value']));
+					if (isset($cf['value']))
+						$metas = array_diff($metas,  array($cf['value']));
 			}
 		}
 		return $metas;