title: Membership.IsApproved value not saved
body: <p>I have this code:</p>
  
  <pre><code>MembershipUser user = Membership.GetUser(model.UserName);
  if (user != null) 
      user.IsApproved = false; 
  </code></pre>
  
  <p>The call to <code>user.IsApproved</code> above does set the <code>IsApproved</code> flag to <code>false</code> but when I subsequently do:</p>
  
  <pre><code>MembershipUser user = Membership.GetUser(model.UserName);
  </code></pre>
  
  <p>and check the <code>IsApproved</code> flag the value is <code>true</code>!</p>
  
  <p>What's wrong?</p>