From 83fc40040b4ae35fd8fe6683f37adf40754392b9 Mon Sep 17 00:00:00 2001
From: stronk7 <stronk7>
Date: Mon, 31 Mar 2008 22:52:17 +0000
Subject: [PATCH] Prevent cloning of non-object. Delegate to parent method as
 fallback. MDL-14120 ; merged from 19_STABLE

---
 blocks/html/block_html.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/blocks/html/block_html.php b/blocks/html/block_html.php
index f0a60ef8b8..780541f50e 100755
--- a/blocks/html/block_html.php
+++ b/blocks/html/block_html.php
@@ -42,6 +42,10 @@ class block_html extends block_base {
      * @return string
      */
     function get_backup_encoded_config() {
+        /// Prevent clone for non configured block instance. Delegate to parent as fallback.
+        if (empty($this->config)) {
+            return parent::get_backup_encoded_config();
+        }
         $data = clone($this->config);
         $data->text = backup_encode_absolute_links($data->text);
         return base64_encode(serialize($data));
-- 
2.39.5