Why there is Persistent View Data Dictionary property?

I’m using ScriptableWizard to show window (look image) in editor and for some reason I got this additional property (Persistent View Data Dictionary property - even if I didn’t add this property). Why it is here and how hide or remove it?

I’m using 2017.3.1f1 version of Unity

bump

(cant find awnsers either)

I’m not sure why it’s there but there’s a way to hide it if you’re willing to write your own custom GUI inside the wizard’s class like this…

    protected override bool DrawWizardGUI()
    {
        // any wizard fields need to be drawn here now
        myFoo = EditorGUILayout.ObjectField("My Foo", myFoo, typeof(Foo), true) as Foo;
        return GUI.changed;
    }