Lift JSON issue with multiple constructors

lift-jsonissue.scala

// given the following case class:
case class Author(val id: Long, firstName: String, lastName: String, email: Option[String]){
  def this() = this(0,"John","Doe",Some("[email protected]"))
}

// when constructing the case class with:
val author = Author

// in the above case, Lift-JSON will arbitrarily render "{}" most of the time when doing:
compact(render(decompose(author))