Comment 29 for bug 1251393

@Rene-

Note Wayne's comment in #18. Let's get the clearly defined behaviors documented first.

As to why I pushed the snapping changes, I'm sure you've seen the number of bug reports dealing with open outlines, STEP export healing and 3d-viewer mishigas. Unifying our snapping architecture reduces these bugs for users. We've had two releases held up while we tracked down line continuity bugs. I'd like to avoid a third.