Scala.JS regression: class arg defaulting to js.native

[japgolly]

Compiler version

3.0.0-RC2-bin-20210322-4035f51-NIGHTLY with Scala.JS 1.5.0

Minimized code

import scala.scalajs.js
import scala.scalajs.js.annotation._

@JSGlobal
@js.native
class X(x: js.Object = js.native) extends js.Object

Output

[error] 6 |class X(x: js.Object = js.native) extends js.Object
[error]   |                       ^^^^^^^^^
[error]   |         js.native may only be used as stub implementation in facade types

Expectation

It should compile.

[japgolly]

/cc @sjrd

[sjrd]

Duplicate of #11592