Nested errors don't appear to encode path properly

[hderms]

This is more or less from your example on the README:

import com.sksamuel.monkeytail.Validator
import com.sksamuel.monkeytail._
import com.sksamuel.monkeytail.ValidatorSyntax._

case class Designation(prefix: String, code: String)
case class Starship(name: String, maxWarp: Double, designation: Designation)

implicit val designationValidator = Validator[Designation]
  .validate(_.prefix)(prefix => prefix != null && (prefix.startsWith("NCC") || prefix.startsWith("NX")))
  .validate(_.code)(!_.isEmpty)

object MaxWarpExceededViolation extends Violation

val starshipValidator = Validator[Starship]
  .validate(_.name)(_ != null)
  .validate(_.maxWarp)(_ < 10)(MaxWarpExceededViolation)
  .valid(_.designation)(designationValidator) // this will require the previous implicit.

val starship = Starship("USS Enterprise", maxWarp = 5.0, designation = Designation("NCC-foo", ""))
val result = starshipValidator(starship)

The output of the result has what appears to be a bug in the path returned:

result: Validated[NonEmptyList[Violation],Starship] = Invalid(NonEmptyList(DefaultViolation(Invalid value: ,Path(List(code)))))

Path(List(code)) should be Path(List(designation, code))