Jetpack circular dependency bug

a.js

console.log('This is A.');
var b = require('b');

b.js

console.log('This is B.');
var a = require('a');

c.js

console.log('This is C.')
var main = require('main');

main.js

console.log('This is main.');
var a = require('a');
var b = require('b');
var c = require('c');

package.json

{
    "name": "cycle", 
    "license": "MPL 2.0", 
    "author": "", 
    "version": "0.1", 
    "fullName": "cycle", 
    "id": "jid1-07jsfB6w6YeoFA", 
    "description": "a basic add-on"
}

The output:

info: This is main.
info: This is A.
info: This is B.
info: This is C.
info: This is main.