title: How can we override a default fl specific field through a query
body: <p>In my schema i am having 20 fields.</p>
  
  <p>I am having a qt in which</p>
  
  <pre><code>&lt;lst name="defaults"&gt;
    &lt;str name="fl"&gt;f1,f2,f3,f4&lt;/str&gt;
    ...
  &lt;/lst&gt;
  </code></pre>
  
  <p>On some specific condition, I want to use aliases in solr query such that
  When(condition)
  f2 name should be replaced by field2
  but when i m using it through solr query like
  fl=field2:f2 then only field2 is printed in json response.
  I want all fields of fl in default qt to printed in the json response
  that is 
  f1
  field2
  f3
  f4
  Please tell how can i achieve this because if i write in solr query
  fl=field2:f2,*, then it will print all fields of schema which i don't want. I only want qt fl fields in json reponse.</p>