Hi there,
I don't know the history of this piece, but as far as I know, it's usually played as E major. Interesting fact - I tried looking it up, and found out that this mazurka had an original less known version (in which the chord is indeed E major). Check it out:
I personally think it sounds better as E major - it gives a nice contrast - here you are, thinking the mazurka is all introverted and melancholic (because of the soft E minor 2 bars before), but then this sudden "burst" not only changes the dynamics (stretto forte), but gives you a fu***ng major chord. The pianist is no longer helpless, but is actually fighting for survival. At least that's how I see it...
But you should play it the way you feel like. In these types of cases there's no wrong answer.