Index: moodle/grade/lib.php
--- moodle/grade/lib.php Base (1.210)
+++ moodle/grade/lib.php Locally Modified (Based On 1.210)
@@ -1153,7 +1153,7 @@
             return $strparams;
         }
 
-        $strparams->itemname = $element['object']->get_name();
+        $strparams->itemname = html_to_text($element['object']->get_name());
 
         // If element name is categorytotal, get the name of the parent category
         if ($strparams->itemname == get_string('categorytotal', 'grades')) {