Comment # 1 on bug 1194544 from Arjen de Korte

I tried replicating this problem, but initially was unable to do so. With a
clean install of apache2, adminer and mariadb on Tumbleweed I was able to login
normally and sessions were saved in the PrivateTmp directory under
/tmp/systemd-private-*-apache2.service-*/tmp/. I could only reproduce the
problem by restarting apache while being logged in. As sessions are stored in
PrivateTmp, this would be empty after a restart so this can be expected.

Before: /etc/php7/fpm/php.ini
  session.save_path = /var/lib/php7

Sessions are stored in a location that is unaffected by restarting apache.

Now:    /etc/php7/fpm/php.ini
  ;session.save_path = /tmp

Sessions are stored in systemd PrivateTmp directory, which is unaffected by
reloading apache, but is cleared when restarting apache.

Could it be that during the openQA test it is expected that the session stays
intact even when apache is restarted?