MDL-20636 Fix problem editing truefalse questions. #298

Also, fix a notice on the quiz editing form.

mod/quiz/mod_form.php

@@ -168,7 +168,6 @@ class mod_quiz_mod_form extends moodleform_mod {
 //-------------------------------------------------------------------------------
         $mform->addElement('header', 'reviewoptionshdr', get_string('reviewoptionsheading', 'quiz'));
         $mform->addHelpButton('reviewoptionshdr', 'reviewoptionsheading', 'quiz');
-        $mform->setAdvanced('reviewoptionshdr', $quizconfig->review_adv);
 
     /// Review options.
         $this->add_review_options_group($mform, $quizconfig, 'during', mod_quiz_display_options::DURING);

question/type/truefalse/edit_truefalse_form.php

@@ -110,6 +110,8 @@ class qtype_truefalse_edit_form extends question_edit_form {
             );
             $question->feedbackfalse['itemid'] = $draftid;
         }
+
+        return $question;
     }
 
     public function qtype() {