title: Does Django's 'exact' field lookup perform a case-insensitive search?
body: <p>From what I read on the Django manual, I thought that the <code>exact</code> field lookup would perform a case-SENSITIVE search, yet, when I do this</p>
  
  <p><code>FormZBaseElementExtraLabel.objects.filter(label__exact='his6')</code></p>
  
  <p>I get the following output</p>
  
  <p><code>&lt;QuerySet [&lt;FormZBaseElementExtraLabel: HIS6&gt;]&gt;</code></p>
  
  <p>clearly not case-sensitive, and in fact identical to the default <code>filter</code>  or <code>iexact</code>.</p>
  
  <p>Any ideas as to what could be the problem?</p>
  
  <p>Thank you</p>