Drupal 'destination' URL isn't parsed properly from a Civi registration page, results in nonrecov error

Steps to reproduce.

1. Go to CiviCRM.org when NOT logged in
2. Proceed to an event registration page such as: http://civicrm.org/civicrm/event/register?id=194&reset=1
3. Decide (as an end user would) that they would rather login than fill out all the fields again
4. Use the login feature in the top left
5. Notice how after login you are redirected back to the page, but Drupal has changed the parameters so that the URL looks something like instead
http://civicrm.org/civicrm/event/register?destination=civicrm/event/register%3Fid%3D194%26reset%3D1
6. CiviCRM doesn't know how to parse this URL and generates a nonrecoverable error