Hello. In c# driver version 2.0.1.-rc this is code was worked.

public class Person
{
public string Id

{ get; set; }
public string Name { get; set; }

}

public class SubObject
{
public Person Pers

{ get; set; }
public string SomeData { get; set; }

public SubObject(Person pers, string someData)

{ Pers = pers; SomeData = someData; }

}

static void Main(string[] args)
{
MongoClient client = new MongoClient("mongodb://localhost");
var database = client.GetDatabase("TestDataBase");
var objectsCollection = database.GetCollection<Person>("TestCollection");
objectsCollection.Database.DropCollection(objectsCollection.CollectionNamespace.CollectionName);

var person = new Person()

{ Id = "12", Name = "Alex" }

;
objectsCollection.InsertOne(person);
person = new Person()

{ Id = "34", Name = "Timmy" }

;
objectsCollection.InsertOne(person);

var result1 = objectsCollection.AsQueryable().Where(o => o.Name.Length > 4).ToList(); // return 1 object
var result2 = objectsCollection.AsQueryable().Where(o => o.Name.Length > 4).Select(o => new SubObject(o, "test text")).ToList();
} // this code worked in 2.0.1-rc, but don't work in 2.2.4

This is bug or not?