Json.Net PopulateObject附加列表而不是设置值

我在.Net 4.5上使用Json.Net,当在下面的对象上使用populate对象时,它会使用json的内容增加List,而不是设置它的值.

Json.Net

JsonConvert.PopulateObject(string, object)

类

class MySettingSubClass
{
    public List MyStringList1 = new List(){"one", "two", "three"}
}

class MySetting
{
    public string MyString = "MyString";
    public int MyInt = 5;
    public MySettingSubClass MyClassObject = new MySettingSubClass();
    public List MyStringList2 = new List{"one", "two", "three"};
}

当他们最初加载时,一切都是正确的,但是从JSON重新加载两个MyStringLists都是重复的 "one", "two", "three", "one", "two", "three"