title: laravel's Session flush and forget methods not working as expected
body: <p>I tried to delete a value from my session using :</p>
  
  <pre><code>Session::forget('value')
  </code></pre>
  
  <p>but it didn't delete!</p>
  
  <p>However,  when i tried using <code>save</code> method like so :</p>
  
  <pre><code> Session::forget('value')
   Session::save()
  </code></pre>
  
  <p>it worked!  (I.e. the value was deleted from the session.)</p>
  
  <p>Please - what am I doing wrong?  I don't see the <code>save</code> method in the Laravel documentation when using <code>Session::flush()</code> and <code>Session::forget()</code>.</p>