Incorrect result for cyclic objects

[smikhalevski]

The example below is expected to return true but returns false:

var nanoEqual = require("nano-equal")

const a = {aaa: 123};
a.a = a;

const b = {aaa: 123};
b.a = {aaa: 123};
b.a.a = b;

nanoEqual(a,b); // → false