CLONE_INTO_CGROUP and CLONE_CLEAR_SIGHAND are both erroneously 0

[UhhhWaitWhat]

Apparently the two clone flags CLONE_INTO_CGROUP and CLONE_CLEAR_SIGHAND are both larger than an i32, which results in them quietly being truncated to 0 over here (or I'm misunderstanding something).

linux/sched.h defines them as follows:

#define CLONE_CLEAR_SIGHAND 0x100000000ULL
#define CLONE_INTO_CGROUP 0x200000000ULL

As far as I understand clone() cannot support these, but clone3 should be able to.
In any way I'd argue the two flags being 0 is a bug and it would be better not having the flags then having them be wrong.