RestSharp请求在发送对象时发送DateTime.MinValue

Question

在正文中或使用RestSharp作为参数发送对象时，DateTime对象属性将被接收为MinValue（对于DateTime可空属性，则为null）。

我的例子：

internal static int RequestWithObjectParam<T>(
    T parameter, string resource, string httpMethod, out string jsonResponseData)
{
    var client = new RestClient(_baseUrl);

    var request = new RestRequest(resource, HttpMethod.VerbStringToHttpVerb(httpMethod));
    request.AddObject(parameter);

    var result = client.Execute(request);

    jsonResponseData = result.Content;

    return (int)result.StatusCode;
}

发送的对象包含一个简单的DateTime属性：

public DateTime LastModification { get; set; }

此字段在发送之前仅设置为DateTime.Now：

lastModification: DateTime.Now,

最后是ActionMethod：

public HttpStatusCode PostParking(Guid key, Parking newParking)