Auto login after registration email activation doesn't load permissions

In-Portal "E-mail Activation" registration option. When in use, then user is created in "Pending" status and e-mail is sent with a link to activate user. Once user clicks on that link it becomes Active and Logged-In.

There are 2 problems with that:
1. when agents don't run through cron, but on site, then auto-login don't work at all
2. auto-login loads Guest user permissions instead of requested user permissions, that is auto-logged in