defaults should be asigned to the structure, as opposed to constructed while assessing

[loyada]

Here is an example of a bug:

    class Foo(Structure):
        a: Array(items=String, default=list)
    

    foo = Foo()
    assert foo.a == []
    foo.a.append(123)                    # this should be invalid, but it works since the list is disconnected from the structure
    assert foo.a == [123]                # fails, since foo.a returns [] . 

If defaults will be set during initialization instead, it would work as expected.

[loyada]

fixed in 2.4.8