select input elements are missing labels

This changes effected the entire select option and input text which created through html_writer, single_select() or html tag. The best way to test this issue is by viewing the html source (eg: firebug) for select option and input text. For the following attempts, make sure there's no error display and select/input text is properly labeled. #. create and attempt a quiz within the course. Access the stats reports for the quiz and make sure there is no error display. #. on page site admin>reports>log #. on page site admin>plugins>filters>manage filters #. grader report for the course, somecourse>grade #. any other page that use select option or input text.