Looking for empty default values in output_html() for multiselect settings.

Must be empty arrays.

diff --git a/lib/adminlib.php b/lib/adminlib.php
index a03044b3a4950f703c3d73f1b6d4966e8df67589..fbacaffd470d0900dd0d6c7871cb7c7559379449 100644 (file)
--- a/lib/adminlib.php
+++ b/lib/adminlib.php
@@ -1518,6 +1518,9 @@ class admin_setting_configmultiselect extends admin_setting_configselect {
     function output_html() {
         if ($this->get_setting() === NULL) {
           $currentsetting = $this->defaultsetting;
+          if (!$currentsetting) {
+              $currentsetting = array();
+          }
         } else {
           $currentsetting = $this->get_setting();
         }