Log in: automatical redirection to the first page

When logging in forum from second or one of the next pages, there is automatical redirection to first page.

Pre-conditions

1. Any topic with two or more pages should be opened on any page except the first
2. User have "Page size" 15
3. User should be logged off

Steps to reproduce

1. Log in to forum

Actual Result
User was automatically redirected to the first page in this topic.

Expected Result
User stays in the same page as he logged in.