Model Update ignores null

You can pass an array instead of an entity.

PHP Code:

$data = [
    'field' => 'key',
];
$model->update($id, $data);
// or
$data = [
    'id'      => $id,
    'field' => 'key',
];
$model->save($data); 


Yes, I know that array works, but Entity Object doesn't work, is a bug?

---

Do you want the soft-deleted record to be restored?

How about this?
1. Get the record with withDeleted()
2. Change the properties
3. Save it

I do that, but if I change properties passing data as object to save(), doesn't work. It only works with array. Is a bug?