Wikimedia Bugzilla is closed!

Manual backtrace:
<ul>
<li>Language.php line 1344 calls wfBacktrace()</li>
<li>Language.php line 1528 calls Language::iconv()</li>
<li>WebRequest.php line 228 calls Language::checkTitleEncoding()</li>
<li>WebRequest.php line 249 calls WebRequest::getGPCVal()</li>
<li>index.php line 56 calls WebRequest::getVal()</li>
</ul>

Input (mangled): User:გიორგ<E1><83>%9

I'm unable to reproduce this on my test environment, which does not use pretty urls, if that matters.

Excpected result:
No notice is shown.

Was triggered by a google web crawler, no idea where it got it from. It also requested url /wiki/User:%C3%81%C6%92%E2%80%99%C3%A1%C6%92%CB%9C%C3%A1%C6%92%C3%A1%C6%92%C2%A0%C3%A1%C6%92%E2%80%99%C3%A1%C6%92%259 soon after.

PHP 5.2.3-1ubuntu6.4 using lighttpd