Different behaviour in 5.0.7-RC2 and 5.0.7

And maybe bug in both

See comments in example

using System;
using System.Linq;
using Xtensive.Orm;
using Xtensive.Orm.Configuration;

class Program
{
    private static void Main(string[] args)
    {
        var dc = new DomainConfiguration("sqlserver", "Data Source=.; Initial Catalog=DO40-Tests; Integrated Security=True;")
        {
            UpgradeMode = DomainUpgradeMode.Recreate
        };

        dc.Types.Register(typeof(Program).Assembly);

        using (var d = Domain.Build(dc))
        {
            // 5.0.7-RC2    Ok
            // 5.0.7        Ok
            ExecuteWithTestData(d,
                () =>
                {
                    Session.Current.Query.All<TestEntity>()
                        .Select(e => new Poco { Name = e.Name })
                        .OrderBy(e => e.Name)
                        .ToArray();
                });

            // 5.0.7-RC2    Ok
            // 5.0.7        Ok
            ExecuteWithTestData(d,
                () =>
                {
                    Session.Current.Query.All<TestEntity>()
                        .Select(e => new Poco { Name = e.Name, BaseName = e.Name })
                        .OrderBy(e => e.Name)
                        .ToArray();
                });

            // 5.0.7-RC2    Ok
            // 5.0.7        Fail
            ExecuteWithTestData(d,
                () =>
                {
                    Session.Current.Query.All<TestEntity>()
                        .Select(e => new Poco { Name = e.Name, BaseName = e.Name })
                        .OrderBy(e => e.BaseName)
                        .ToArray();
                });

            // 5.0.7-RC2    Fail
            // 5.0.7        Fail
            ExecuteWithTestData(d,
                () =>
                {
                    Session.Current.Query.All<TestEntity>()
                        .Select(e => new Poco { BaseName = e.Name })
                        .OrderBy(e => e.Name)
                        .ToArray();
                });

            // 5.0.7-RC2    Fail
            // 5.0.7        Fail
            ExecuteWithTestData(d,
                () =>
                {
                    Session.Current.Query.All<TestEntity>()
                        .Select(e => new Poco())
                        .OrderBy(e => e.Name)
                        .ToArray();
                });
        }
    }

    private static void ExecuteWithTestData(Domain domain, Action action)
    {
        CreateTestData(domain);

        ExecuteInNewSession(domain, action);

        ClearTestData(domain);
    }

    private static void ClearTestData(Domain domain)
    {
        ExecuteInNewSession(domain, () =>
        {
            Session.Current.Remove(Session.Current.Query.All<TestEntity>());
        });
    }

    private static void CreateTestData(Domain domain)
    {
        ExecuteInNewSession(domain, () =>
        {
            new TestEntity();
        });
    }

    private static void ExecuteInNewSession(Domain d, Action action)
    {
        using (var s = d.OpenSession())
        using (s.Activate())
        using (var t = s.OpenTransaction())
        {
            action.Invoke();
            t.Complete();
        }
    }
}

[Serializable]
internal class Poco : PocoBase
{
    public string Name { get; set; }
}

[Serializable]
internal class PocoBase
{
    public string BaseName { get; set; }
}

[HierarchyRoot]
public class TestEntity : Entity
{
    [Field, Key]
    public Guid Id { get; set; }

    [Field]
    public string Name { get; set; }
}