ODatabase.Select call keeps running if there no record matches to filter

[dvdnhm]

I created a simple search for Person vertex

List<ODocument> lstUser = db.Select("@rid, firstName, lastName")
	.From("person")
	.Where("email").Equals<string>(user.email)
	.ToList();

the query works under a second if the email exist in the vertex and just waits if the record does not exist.