Overloading resolution failed when overloaded val and def have the same number of parameters

[Medowhill]

class C {
  def f(x: Int): Unit = ()
  val f: String => Unit = s => ()
  f("a")
}

The above code is compiled in scalac but results the following error in dotc.

-- [E007] Type Mismatch Error: ../B.scala:4:4 ----------------------------------
4 |  f("a")
  |    ^^^
  |    found:    String("a")
  |    required: Int
  |
one error found

Is it an intended semantics of dotty?

[odersky]

This compiles in latest master