GetCollection crashes with custom Id mapping

[afzalarahim]

GetCollection api throws exception when the class has two ID properties like 'TempId' and ,Id' and TempId is mapped as Id using Fluent API.

    public class BaseClass
    {
        public long TempId { get; set; }
    }
    public class TestClass : BaseClass
    {
        public long Id { get; set; }

        public string Name { get; set; }
    }

Custom Mapping

                mapper.Entity<TestClass>().Id(x => x.TempId);

[afzalarahim]

Any solution or suggestions?