Two visit tests fail

[PaulKlint]

data NODE1 = f(value V) | f(value V1, value V2) | f(value V1, value V2, value V3) | g(value V1, value V2) | h(value V1, value V2)|h(value V1, value V2, value V3);

NODE1 walk(NODE1 t) {
     return visit(t) {
        case int N=>x when x:=N*2, x>=1
        };
     }

public test bool When2()= walk(f(1,2,3)) == f(2,4,6);
public test bool When3()= walk(f(1,g(2,3))) == f(2, g(4, 6));