[Lift Announce] **Breaking Change** MappedField.asJsonValue

[David Pollak]

Folks,

If you've subclassed MappedField and implemented asJsonValue, there's been a breaking change.  The return type signature is now Box[JValue] rather than JValue.  If you do not include a Full box in the return value, the field will not be included in the rendered JSON.

Thanks,

David

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