```scala class Foo(x: Int) { private[this] var init = false; lazy val foo = { if (!init) { init = true assert(false) } x } } object Test { def main(args: Array[String]): Unit = { val foo = new Foo(42) try foo.foo catch { case _: AssertionError => println(foo.foo) // prints 0, should be 42 } } } ```