facebook-chat-api getThreadHistory broken

index.js

// es6 code, run with `FB_EMAIL=email FB_PASSWORD=password node --harmony index.js`
let login = require('facebook-chat-api');
let util = require('util');
let async = require('async');

// Create simple echo bot
login({ email: process.env.FB_EMAIL, password: process.env.FB_PASSWORD }, (err, api) => {
  if (err) return console.error(err);

  api.getThreadInfo('SOME_BIG_THREAD_ID', (err, info) => {
    console.log(info);

    let iteration = 0;
    let chunkSize = 10000;
    async.until(() => (iteration * chunkSize) > info.messageCount, (callback) => {
      api.getThreadHistory(
        '100004708478156',
        iteration * chunkSize,
        (iteration + 1) * chunkSize,
        null,
        (err, history) => {
        console.log(err);
        console.log(history.length);
        console.log(history[0]);
        console.log(history[history.length - 1]);
        console.log(iteration);
        iteration++;
        callback();
      });
    }, () => {
      console.log('done all!');
    });

  });
});