Strange behavior with co, `yield*`, promises, and Node (v. 6.3.1)

Log with `Promise.all()`

/somewhere/yield.js:14
  throw reason;
  ^

Error: test value a has some problems
    at Promise (/somewhere/yield.js:19:12)
    at display (/somewhere/yield.js:18:10)
    at Array.map (native)
    at /somewhere/yield.js:10:28
    at next (native)
    at onFulfilled (/somewhere/node_modules/co/index.js:65:19)
    at /somewhere/node_modules/co/index.js:54:5
    at co (/somewhere/node_modules/co/index.js:50:10)
    at Object.<anonymous> (/somewhere/yield.js:6:1)
    at Module._compile (module.js:541:32)

Log with `yield*`

/somewhere/yield.js:14
  throw reason;
  ^

TypeError: Cannot read property 'done' of undefined
    at next (/somewhere/node_modules/co/index.js:98:14)
    at onRejected (/somewhere/node_modules/co/index.js:85:7)
    at runMicrotasksCallback (internal/process/next_tick.js:58:5)
    at _combinedTickCallback (internal/process/next_tick.js:67:7)
    at process._tickCallback (internal/process/next_tick.js:98:9)
    at Module.runMain (module.js:577:11)
    at run (bootstrap_node.js:352:7)
    at startup (bootstrap_node.js:144:9)
    at bootstrap_node.js:467:3

yield.js

'use strict';

const co = require('co');
const values = ['a'];

co(function* () {
  console.log('start');
  setTimeout(() => console.log('end'), 1000); // just here to confirm that the node task is stopped before timeout
  // yield* values.map(display);
  yield Promise.all(values.map(display));
});

process.on('unhandledRejection', (reason, p) => {
  throw reason;
});

function display(value) {
  return new Promise((fulfill, reject) => {
    reject(new Error(`test value ${value} has some problems`));
  });
}