Wikimedia Bugzilla is closed!

Looks like the http header just has to be changed from:

 content-type: text/plain

to

 content-type: text/plain; charset=utf-8

that didn't help it seems to be inserted to Mysql in wrong format, but I don't know how to fix that, mysql library for .net is pretty undocumented, maybe it doesn't even support this

(In reply to Peter Bena from comment #2)
> that didn't help it seems to be inserted to Mysql in wrong format, but I
> don't know how to fix that, mysql library for .net is pretty undocumented,
> maybe it doesn't even support this

Hmmm. If the mysql tables were set to iso 8859-1, I would expect data to be lost (Since it would discard invalid character points. I would think). In this case its clear the data isn't lost, just marked incorrectly. So it might just be the connection and not the db tables. (But if it is the db tables, you can use the Alter command to change the character set on them)

Googling suggests something along the lines of

new MySqlConnection( "Various parameters you need;CharSet=utf8;" );

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Anyhow, the actual text content being served is fine, its just marked incorrectly. So that should be the layer above your database.