Syntax error in cached template code

I keep hitting this error when viewing topics on area51. After a reload it typically displays fine. So it seems like this could be the result of reading a partially written template file from filesystem cache maybe?

( ! ) Parse error: syntax error, unexpected '}' in /var/www/phpbb/area51.phpbb.com/area51-phpbb3/phpBB/cache/tpl_prosilver_viewtopic_body.html.php on line 4