mongooseFactory errors do not cause an exception

[mb-dev]

Steps to reproduce:
Create a mongoose factory for a model that has validation. Using the factory create an instance with values that fail the validation.

Expected outcome:
Failure is returned on the callback

Actual:
Callback returns okay with undefined value

[hazeledmands]

Hey @mb-dev, unfortunately, I just created a passing test that cannot reproduce this bug. See 0e4f5af

I think something else might be going on in your code.

[mb-dev]

The failed tests are when using mongoose 3.6.

I cloned unionized, installed 3.6 and ran tests: