diff --git a/bootstrap.php b/bootstrap.php
index 82c6d5d..5a5e076 100644
--- a/bootstrap.php
+++ b/bootstrap.php
@@ -40,10 +40,13 @@ if (!isset($CFG->dataroot)) {
 // 1) Make sure we replace the configurations for behat as we have not ran 'lib/setup.php' yet.
 if (!empty($CFG->behat_wwwroot) or !empty($CFG->behat_dataroot) or !empty($CFG->behat_prefix)) {
     require_once(__DIR__.'/../../lib/behat/lib.php');
+
+    // The function call below will change $CFG so let's save it and restore later if access is granted.
+    $beforebehatcfg = $CFG;
+    $CFG = clone($CFG);
     behat_update_vars_for_process();
+
     if (behat_is_test_site()) {
-        $beforebehatcfg = $CFG;
-        $CFG = clone($CFG);
         clearstatcache();
         behat_check_config_vars();
         behat_clean_init_config();
@@ -82,4 +85,5 @@ $CFG->auth_outage_bootstrap_loaded = true;
 // 5) Restore behat config as needed (let setup.php execute which is more complex than our quick-check).
 if (isset($beforebehatcfg)) {
     $CFG = $beforebehatcfg;
+    unset($beforebehatcfg);
 }