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NorfairKing
Aeson tests don't validate toJSON and toEncoding agree
It's recommended to implement toEncoding when instantiating ToJSON, but there's no validation ensuring it agrees with toJSON (which is a requirement since it doesn't go the other way).
A simple workaround might be to encode toJSON v and v both while testing round tripping. They don't need to end with identical representations, but the decoder needs to agree that they're equivalent.
