User is redirected to the same page but without query arguments after successful login.

• navigate to some content that needs login to be available
• add manually to the content url a query string
  (example: using http://site.com/somecontent/myobject, add "?param=test" to url)
• site should jump to login page
• login, the redirect will go back to /somecontent/myobject
• check that the querystring has disappeared

(this behavior can be verified using a regular login or an sso handler, the steps are the same)