When overwriting a property, the GraphQL repeats the original property unless ignored

[jeggy]

Copied from: pgutkowski#64

[jeggy]

This has been fixed and is working now.

Something like this is valid:

data class Value(
    val id: String,
    val name: String
)

query("hello") {
    resolver { ->
        Value("25", "Hello World")
    }
}
type<Value> {
    property<Int>("id") {
        resolver { it.id.toInt() }
    }
}