This wording sounds basically exactly like https://github.com/systemd/systemd/issues/3332, which is quite older than Focal. I also cannot reproduce this on Focal.
** Bug watch added: github.com/systemd/systemd/issues #3332 https://github.com/systemd/systemd/issues/3332 ** Changed in: systemd (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1943037 Title: Automounts do not reset properly after TimeoutIdleSec automatic unmounts Status in systemd package in Ubuntu: Invalid Bug description: Ubuntu version: Ubuntu 20.04.3 LTS systemd version: 245.4-4ubuntu3.11 Expected behavior: Automount units whose associated mount units have been auto-unmounted with TimeoutIdleSec will trigger the associated mount unit when the automount path is accessed again Current behavior: Automount units whose associated mount units have been auto-unmounted with TimeoutIdleSec do not trigger the associated mount unit when the automount path is accessed again until the automount unit is completely restarted. Steps to reproduce the problem 1. Trigger any automount unit with TimeoutIdleSec= set 2- Wait for the idle time to occur and systemd to unmount the associated mount unit 3. Then try to access the automount location again. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1943037/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
