Interesting timing. I just returned from the library and the current
issue of Fine Homebuilding answered this very question. There take
was that the membrane should be under the drip edge, and wrapped over
the top of the fascia (hidden by the drip edge). I never did it that
way, but it makes a lot of sense, particularly in ice dam territory.

Hmm... I suppose wrapping over the top of the fascia would prevent the
issue of water going under drip edge to the wood decking. Good to know if
I'm still around in 15-20 years when I need to reroof our house.