title: C# nest elasticsearch converting guid into array
body: <p><a href="https://i.stack.imgur.com/6sFj0.png" rel="nofollow noreferrer">enter image description here</a>I am doing an aggregation on a field with the a guid value like c4b0c9ae-345c-4247-87e3-e9d9de67c01b but when elastic search returns the aggregations
  it is becoming an array ["c4b0c9ae","345c","4247","87e3","e9d9de67c01b"].
  How do you handle this on nest?</p>