Thread:Project:Support desk/ResourceLoader duplicate header Status on FastCGI/reply (2)

I'm getting an error 500 with the following URL, should I file another bug or is this related?

.../mediawiki/load.php?debug=false&lang=en&modules=jquery.checkboxShiftClick%2Cclient%2Ccookie%2Cplaceholder%7Cmediawiki.language%2Cutil%7Cmediawiki.legacy.ajax%2Cajaxwatch%2Cwikibits&skin=vector&version=NaNNaNNaNTNaNNaNNaNZ

(lighttpd/1.4.28, php-cgi 5.3.3-7+squeeze3, Mediawiki 1.17.0)