The result of this call
http://zh.wikipedia.org/w/api.php?action=query&titles=%E9%BE%99%E9%97%A8%E9%A3%9E%E7%94%B2&converttitles
returns
<converted>

<c from="龍門飛甲" to="龍門飛甲" />

</converted>

Which does not look right (I don't speak the language, but I can see that the characters are identical). According to all the specs, the from value should be identical to the one in the query.

Version: unspecified
Severity: normal
URL: http://zh.wikipedia.org/w/api.php?action=query&titles=%E9%BE%99%E9%97%A8%E9%A3%9E%E7%94%B2&converttitles