Split reducer throws exception if payload is null. #121
Description
Hey,
I've just found an issue that occurs when dispatching an action where payload is null.
One of our applications actions does this and it's causing the Split reducer to throw an exception, even though the action is unrelated to Split. It occurs when the Split reducer tries to read the timestamp property of payload (which is null).
Please see attached screenshots that show the Split reducer throwing an exception when our application dispatches a SET_REDEMPTION_PARTNER_DETAILS action with payload of null.
This behaviour was observed using version 1.14.0 of the Redux SDK.
