Is map correct?

[SimonRichardson]

@puffnfresh would you expect the following be correct?

    var x = {a:{x:1}};
    Lens.objectLens('a').andThen(Lens.objectLens('x')).run(x).map(function(o) {
        console.log(o); // Expect {x:1}, Received {a:{x:1}}
        return o;
    }).extract();

[puffnfresh]

Looks very broken! :ghost: