Lost null type when using null safe operator

[momala454]

Describe the bug When we use a null safe operator, intelephense doesn't report that the type can be null

To Reproduce

class Hello
{
    public int $world;
}
function world(?Hello $hello): void
{
    $abc = $hello?->world;
    var_dump($abc);
}
world(null);

$abc is null, not an int

Expected behavior The type should be null|int

Screenshots

Platform and version 1.10.2