Extract Wikipedia dump file

for some reason it is unzipping the english version instead of the polish version. i'll have a look.

Sorry that exception was from another command when I wasn't specifying the Polish language. However I still had to do the manual extract of the Polish dump. I can replicate that to get the actual error.

Can you try it on the latest version and if it still throws an error can you send me the log? see editor_trends/logs thanks!