The apt side should be OK. But it depends on interaction with other services, so it cannot be reliably tested on its own I guess.
We'll get a better fix eventually that makes the apt side work better by making it wait on the upgrade itself.
Currently, we basically stop the controlling script; and then u-u continues running and the shutdown is blocked by u-u.service waiting for it
The apt side should be OK. But it depends on interaction with other services, so it cannot be reliably tested on its own I guess.
We'll get a better fix eventually that makes the apt side work better by making it wait on the upgrade itself.
Currently, we basically stop the controlling script; and then u-u continues running and the shutdown is blocked by u-u.service waiting for it