Fix PHP error where calling get() on a non object

Aleksander Machniak

2012-05-21 38184e911363dd8c2bd4c93b7d3f3dde27be8e61

Fix PHP error where calling get() on a non object

 program/include/rcube_imap.php

@@ -2670,6 +2670,8 @@
            return array();
        }

        $config = rcube::get_instance()->config;

        // #1486796: some server configurations doesn't return folders in all namespaces
        if ($root == '' && $name == '*' && $config->get('imap_force_ns')) {
            $this->list_folders_update($result);