title: HttpCookieCollection.Add vs HttpCookieCollection.Set - Does the Request.Cookies collection get copied to the Response.Cookies collection?
body: <p>I just want to clear this up.</p>
  
  <p>I know that if I have set a cookie on a previous request, it will show up in my <code>Request.Cookies</code> collection.  </p>
  
  <p>I want to update my existing Cookie.  </p>
  
  <p>Are the cookies from my <code>Request.Cookies</code> collection already copied to my <code>Response.Cookies</code> collection?  Do I need to add a new cookie with the same key using <code>Response.Cookies.Add()</code>, or do I need to use <code>Response.Cookies.Set()</code>?  </p>