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JSONDecoder and absent optionals

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Context: Using SwiftData with an explicitly Codable class containing an optional.

Task: Decoding json data which intentionally lacks the optional's key

Result is JSONDecode fails, complaining about the absent key and something nil

I thought the decoder would by default ignore missing keys.

How should I be thinking about this problem?

(Latest MacOS 14 and non-beta Xcode)

3      

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