in src/Microsoft.Bookings.Client/DataServiceQueryExtensions.cs [29:37]
public static T NewEntityWithChangeTracking<T>(this DataServiceQuery<T> entitySet)
where T : new()
{
var entitySetName = entitySet.Context.BaseUri.MakeRelativeUri(entitySet.RequestUri).ToString();
var changeTrackingCollection = new DataServiceCollection<T>(entitySet.Context, new List<T>(), TrackingMode.AutoChangeTracking, entitySetName, null, null);
var entity = new T();
changeTrackingCollection.Add(entity);
return entity;
}