MDL-35008 Lesson: url decode rules not applied to answers and responses

mod/lesson/backup/moodle2/restore_lesson_activity_task.class.php

@@ -55,6 +55,7 @@ class restore_lesson_activity_task extends restore_activity_task {
         $contents = array();
 
         $contents[] = new restore_decode_content('lesson_pages', array('contents'), 'lesson_page');
+        $contents[] = new restore_decode_content('lesson_answers', array('answer', 'response'), 'lesson_answer');
 
         return $contents;
     }