Not support query and fragment of login destination module

Thanks your such a nice module,

I am working in project where i was using login_destination module after my client requirement i have to show login in popup so i used this module and it works nice but modal_form not supporting query and fragment parameter of url.

For example, i wrote php code in login_destination to redirect url on login

  <?php return array('blog', array('fragment' => 'overlay=admin/config', ), ); ?>

Then after using modal_form module, user redirected to only /blog page but it suppose to redirect page to /blog#overlay=admin/config