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Cannot serialized higher order type when type is boxed #32

@bruno-cadorette

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@bruno-cadorette

This code throws System.ArgumentException: 'Could not determine JSON object type for type Program+MyRecord.'

type MyRecord = {
    Field1 : string
    Field2 : int
    Field3 : bool
}
type Wrapper<'a> = {
    Id:     string
    Config: 'a
}
let myObject = {
    Id = "test test test";
    Config = (box {Field1 = "hi"; Field2 = 2; Field3 = true })
}
let result = JsonConvert.SerializeObject(myObject, Converters.Converter())

If we remove the box, the serialization works but sadly in my case I cannot avoid it.

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