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.