What encoding did you set up for the wiki?
The database character set is MySQL 4.1/5.0 binary.
The 'Æ' character should be encoded in UTF-8
as %C3%86, %C6 is in
Then it seems that Zend Framework's HTTP client library or PHP's
http_build_query() function is incorrectly encoding the string, since the 'Æ'
I'm passing is indeed UTF-8.
It is apparent that this is NOT a MediaWiki API bug, but any further suggestions are