in elitzur-avro/src/main/scala/com/spotify/elitzur/converters/avro/AvroConverter.scala [188:195]
override def toAvroDefault(v: ValidationStatus[Option[T]],
defaultGenericContainer: GenericContainer)
: Any = {
v.forceGet match {
case None => null
case _ => implicitly[AvroConverter[T]].toAvroDefault(v.forceGet.get, defaultGenericContainer)
}
}