- reimport udev db after MOVE events for devices without dev_t
+ - don't keep stale db in case event processing fails (also notify userspace about the failure)
* when a service has the same env var set twice we actually store it twice and return that in systemctl show -p... We should only show the last setting
* when a service has the same env var set twice we actually store it twice and return that in systemctl show -p... We should only show the last setting