用ef查询，两个list集合，list集合的对象都是一样的，但是，返回结果的时候报错：
When an object is returned with a NoTracking merge option, Load can only be called when the EntityCollection or EntityReference does not contain objects.

弄不明白怎么回事？

代码如下：
List<Base_User> manageList = new List<Base_User>();
List<Base_User> leaderList = new List<Base_User>();

manageList = OperateContext.Current.BllContext.IBase_UserBll.GetList(c => c.TeamId == KeyValue && c.DeleteMark == 0 && c.InnerUser != 1 && c.CompId == userContext.User.CompId && manageUserIds.Contains(c.UserId)).ToList();

leaderList = OperateContext.Current.BllContext.IBase_UserBll.GetList(c => c.TeamId == KeyValue && c.DeleteMark == 0 && c.InnerUser != 1 && c.CompId == userContext.User.CompId && leaderUserIds.Contains(c.UserId)).ToList();

return Json(new { manageList, leaderList }, JsonRequestBehavior.AllowGet);
返回结果的时候报错了。