[red] Document behavior for exception in dummy factory
[red] Document behavior for exception in dummy factory

adamralph/FakeItEasy,thomaslevesque/FakeItEasy,FakeItEasy/FakeItEasy,FakeItEasy/FakeItEasy,blairconrad/FakeItEasy,blairconrad/FakeItEasy,adamralph/FakeItEasy,thomaslevesque/FakeItEasy