public function is_feedback_modified(stdClass $grade, stdClass $data) {
        debugging('This plugin (' . $this->get_name() . ') has not overwritten the is_feedback_modified() method.
                Please add this method to your plugin', DEBUG_DEVELOPER);
        return true;
    }
public function is_feedback_modified(stdClass $grade, stdClass $data) {
        debugging('This plugin (' . $this->get_name() . ') has not overwritten the is_feedback_modified() method.
                Please add this method to your plugin', DEBUG_DEVELOPER);
        return true;
    }
public function is_feedback_modified ( stdClass $ grade , stdClass $ data ) { debugging ( 'This plugin (' . $ this -> get_name ( ) . ') has not overwritten the is_feedback_modified() method.
                Please add this method to your plugin' , DEBUG_DEVELOPER ) ; return true ; }
Has the plugin form element been modified in the current submission?

@param stdClass $grade The grade.
@param stdClass $data Form data from the feedback form.
@return boolean - True if the form element has been modified.
Has the plugin form element been modified in the current submission?