title: Devise overrides my request params when user is logged in
body: <p>I am using request params in my application to transfer information from other websites.
  The request looks like:</p>
  
  <pre><code>myapp.com/users/sign_up?customer=somevalue
  </code></pre>
  
  <p>Once a user isn’t logged in, everything works fine and I am able to retrieve these params in my registrations controller (I have overridden Devise's controller). I get them using:</p>
  
  <pre><code>customer_key = params[:customer]
  </code></pre>
  
  <p>Once the user is already logged in, I cant retrieve these params and I suspect Devise has modified them for me. The "post-login" params are:</p>
  
  <pre><code>{"action"=&gt;"show", "controller"=&gt;"users", "id"=&gt;"my-user"}
  </code></pre>
  
  <p>(this was taken from my users controller)</p>
  
  <p>My question is - How can I retrieve these params when the user is logged in in my users controller?</p>