Me2. Let's wait to find out what Joe meant.
Anyway: Looking at different editions, I see that there are differences in the
left hand.
Edit: Be that as it may, I just learned something.

IMSLP has the Fontana manuscript -- and assuming that it's correct on this detail (and I'd have to guess it is), I've been playing it wrong forever, and so do many other people.
I've been re-striking the F# in the LH, sort of not realizing it's the same note that the RH had played previously as part of its octave, and that the note is
tied over, not re-struck. (I've been re-striking it with the thumb of the LH.)
Maybe this is what Joe meant: Are you supposed to re-strike that F# in the bass?
I would rush to see what the Joseffy edition shows (because it's the main one I've used), but I'm in the middle of a move and my scores are nowhere to be found.
Can somebody check Joseffy.....