Coverage decreased (-3.48%) when pulling e06ad9d4ba41a96715df75d9c78535a9b86e3727 on errorKeys into 279a773830dc598b6309d9ba533d328f1d77b764 on master.
Coverage decreased (-2.83%) when pulling 1f13046e3f085f1241a37241b5740a0876585ff2 on errorKeys into 279a773830dc598b6309d9ba533d328f1d77b764 on master.
try #2, this just allows us to preserve any additional keys on error objects when returning them from a child in a callback.