title: Sphinx search:'total_found' not exact?
body: <p><p>I found total_found not exact through several tests:<p></p>
  
  <p>In one of the tests, the total_found was 40379, the limit i set was (0,20), then i set the offset to be 2000 and the result was null. Not Until I set the offset much more lower it returned results.</p>
  
  <p>What's the problem? Can anyone help me out? Thank you!</p>