Here is the usecase where ACEGI_SAVED_REQUEST_KEY is not being saved.
1. User is "remembered" using the remember me cookie.
2. User visits a secure page that requires FULLY_AUTHENTICATED
3. User is redirected to the login page
4. Once the user logs in it redirects him to the defaultTargetUrl, without remembering the saved request.
I see that the ACEGI_SAVED_REQUEST_KEY is being lost.