Generally it worked, but there were some problems
1) Conversion script tried to convert .db.orig files:
Now there are articles like "Propozycje Tematow.db.o" with contents "There was an error converting this file : file not found."
2) Article q{"Casablanca"} (WITH quotes, i don't know how to write it down, let's say that q{} are stronger quotes ;)), currently a redirect to q{Casablanca (film)} was converted to q{"Casablanca"}. I wouldn't mind if it was just removed from database.
3) Some articles are weird, like: Polimery 12c12 < [?rednia masa cz?steczkowa polimer?w]? --- > Masa cz?steczkowa polimer?w
That looks like a diff which was imported as article. I have no idea what could cause it.