title: Merge request not working
body: <p>I am trying to replace the 'pic' value, which is set as an array when it comes in, with an image file name but the merge does not seem to be working. </p>
  
  <p>I am not getting any errors in the log with the below code. I guess I am not allowed to embed pictures yet so there is links below. I am doing a Laravel project.</p>
  
  <pre><code>Log::info($request);
  
  $image = $request-&gt;file('pic');
  $imageName = $image-&gt;getClientOriginalName();
  
  $request-&gt;merge(array('pic' =&gt; $imageName));
  $request-&gt;file('pic')-&gt;move(base_path()."/public/profile_pics",$imageName);
  
  Log::info($request);
  </code></pre>
  
  <p><a href="http://i.stack.imgur.com/BEZk9.png" rel="noreferrer">Laravel Log</a></p>
  
  <p>Any Ideas?</p>