ChildGameObjectsOnly attribute ignored in ProjectValidator

[Vanifatov Vlad]

ChildGameObjectsOnly attribute show error message in Inspector but error does not appear after scan in the OdinProjectValidator window

public class Demo : MonoBehaviour
{
    [ChildGameObjectsOnly] public GameObject child;
}

Unity 2019.1, Odin Inspector Source Code + Odin Project Validator Source Code, Windows 10