What happens to a record with an [<Obsolete>] field?

obsolete.fsx

open System

type R =
  {  Wanted : String
     [<Obsolete("Use 'Wanted' instead")>]
     Unwanted : String }
  static member Create () =
    { Wanted = String.Empty
      Unwanted = String.Empty }

let UseR s =
  let r1 = R.Create()
  printfn "%A" r1
  let r2 = { R.Create() with Wanted = s }
  printfn "%A" r2
  let r3 = { R.Create() with Unwanted = s }
  printfn "%A" r3

UseR "is this wanted?"