Output problem in Tex filter

Tex filter of latest moodle 2.0 seems to be broken.

Line 96 in filter/tex/filter.php and function string_file_picture_tex should probably use $anchorcontents as

$output .= $OUTPUT->action_link($link, $anchorcontents, $action, array('title'=>'TeX'));

instead of current $anchortagcontents in

$output .= $OUTPUT->action_link($link, $anchortagcontents, $action, array('title'=>'TeX'));

and line 40 might need global $OUTPUT:

global $CFG, $OUTPUT;

to render tex.