* on Front-End:
# confirm, that none of the link urls (check few urls in random places) have `?sid=...` in them
* in IDE:
# open `/index.php` for editing
# add `$application->Session->CachedNeedQueryString = true;` line after `$application->Init();` line
# save changes
* on Front-End:
# confirm, that all of the link urls (check few urls in random places) have `?sid=...` in them
* in IDE:
# open `/index.php` for editing
# replace `$application->Session->CachedNeedQueryString = true;` line with `$application->Session->CachedNeedQueryString = false;`
# save changes
* on Front-End:
# confirm, that none of the link urls (check few urls in random places) have `?sid=...` in them