Given the following entity and an empty collection in the database:

public class Post
{
[MongoId]
public Guid Id

{ get; set; }

public DateTime LastAccess { get; set; }

public List<string> Tags

{ get; set; }

}

The following query should return an empty list but it returns a list containing a single empty Post entity:

List<string> SearchTags = new List<string>

{"test"}

;

var result = SearchTags.Aggregate(posts.Linq(), (current, tag) => current.Where(x => x.Tags.Any(t => t == tag))).OrderByDescending(
x => x.LastAccess).Skip(skip).Take(take).ToList();