title: If WildcardQuery doesn't affect the scoring of documents, why does it return 0.5 constantly?
body: <p>I am using a WildcardQuery on documents and I see that the result documents all of them have a score of 0.5. I read that queries like WildcardQuery do not affect the scoring of documents and now I am wondering what is the cause of the score to be 0.5.</p>
  
  <p>I am using this simple query:</p>
  
  <pre><code>WildcardQuery wq = new WildCardQuery("filed_name", "book");
  </code></pre>