Could not find Generic instance if object has explicit "unapply" method since Scala 2.13.4 about shapeless HOT 3 CLOSED

Does it work with 2.13.3? 🤔
I would not expect it to work because the unapply signature does not match the apply:

object A {
  def apply(x: Int, y: String): A = ??? // generated
  def unapply(a: A): Option[(Int, String, String)] = ???
}

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There has been a change in Scala - I don't know if intentional or not:

This compiles fine on 2.13.3

object Test {
  case class A(x: Int, y: String)
  object A {
    def unapply(a: A): Option[(Int, String, String)] = ???
  }

  def foo(a: A) = a match {
    case A(x, y) => (x, y)
  }
}

And fails since 2.13.4:

not enough patterns for object A offering (Int, String, String): expected 3, found 2
[error]     case A(x, y) => (x, y)
[error]          ^
[error] one error found

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We could probably work around this change but it's harder than it looks

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