Why don't the url get-parameters change when entering the admin panel in Bitrix?

Question

1C-Bitrix

After launching the next contractor in the admin panel, some kind of game began:

1. I am authorized in the Bitrix admin panel
2. After logging out, I see in the address bar https://site.ru/bitrix/admin/?logout=yes&dt_page=0...
3. I re-enter - I see the same thing in the address bar - https://site.ru/bitrix/admin/?logout=yes&dt_page=0...
4. I press F5 - I am thrown back to the admin login page. If you start walking further along the admin panel, it doesn’t throw it away.

What have we lost and where to dig?

Answer 1

And for what purposes was the contractor launched, what exactly did he do?

Answer 2

Look at the git diff changes, it looks like authorization and logout event handlers.

3. I re-enter - I see the same thing in the address bar - https://site.ru/bitrix/admin/?logout=yes&dt_page=0 ...
4. I press F5 - I am thrown back to the admin login page. If you start walking further along the admin panel, it doesn’t throw it away.

Because it remains in the url logout=yes, and when logging out, a redirect should occur with the removal of this parameter from the url