public function adjust_display_options(question_display_options $options)
 {
     // Save some bits so we can put them back later.
     $save = clone $options;
     // Do the default thing.
     parent::adjust_display_options($options);
     // Restore original feedback options.
     $options->feedback = $save->feedback;
     $options->correctness = $save->correctness;
     $options->numpartscorrect = $save->numpartscorrect;
 }
 public function adjust_display_options(question_display_options $options)
 {
     parent::adjust_display_options($options);
     // There seems to nothing to be done until question_display_options will be passed to specific_feedback function of question renderer.
 }