Binding promises breaks unhandled rejection reporting

[jhenninger]

require('bluebird')
  .reject(new Error('error'))
  .bind(null);

With bluebird 3.0.5, this prints nothing. Only if the bind(null) line is removed it will throw an unhandled rejection error.

With bluebird 2.10.2, it is working fine in both cases and the unhandled rejection is always reported.