Comment #9 on issue 2527 by [email protected]: Finger-flag collision http://code.google.com/p/lilypond/issues/detail?id=2527
LilyPond drivers raise the fingering (add-stem-support does it if you put them in chords).
This was actually my favorite piece when I was eight, and I still have the music I learned it from. Human engravers move the fingering a bit off-center, it seems, so the fingering is not quite centered over the head, if that helps to clear the stem.
imslp.org has the B&H edition, so you can look and tell me if I'm imagining the shift.
