ClassCastException from simple use of pattern matching

[oscar-broman]

Compiler version

3.1.3-RC1-bin-20220226-8922c88-NIGHTLY

Works in 3.1.2-RC1 and 3.1.0

Minimized code

def test(foo: String): Unit = {
  // Does not crash if the type is written explicitly as: Option[(Option[Int], String)]
  val bar = {
    if (foo.isEmpty) Some((Some(1), ""))
    else Some((None, ""))
  }

  bar.foreach {
    case (Some(_), "") =>
    case _ =>
  }
}

test("") // works
test("a")

Output

Exception in thread "main" java.lang.ClassCastException: class scala.None$ cannot be cast to class scala.Some (scala.None$ and scala.Some are in unnamed module of loader 'app')

Expectation

[smarter]

Regressed in #14296