[Dot] [Feature request] Edge pointing at edge

Being able to make edge pointing at edge would be a great feature.

Current workaround for it is creating a dummy middleman like below:

digraph G {
    A->middleman[arrowhead=none];
    middleman->B;
    middleman[shape=point width=0];
    C->middleman;
}

Related Stack Overflow question: https://stackoverflow.com/questions/38410370/edge-pointing-at-edge-with-graphviz-and-dot/59723344.