Bug#1138002: apt-daily: why wait for the upgrade?

Package: apt
Version: 3.0.3

systemctl list-timers shows

% systemctl list-timers | egrep NEXT\|apt
NEXT                                  LEFT LAST                               PASSED UNIT                         ACTIVATES
Wed 2026-05-27 16:59:18 CEST            6h Tue 2026-05-26 23:21:00 CEST      11h ago apt-daily.timer              apt-daily.service
Thu 2026-05-28 06:54:07 CEST           20h Wed 2026-05-27 06:02:50 CEST 4h 36min ago apt-daily-upgrade.timer      apt-daily-upgrade.service

This looks weird. Even if apt-daily is run in 18h again, there
will be still a gap of 2 hours to running apt-daily-upgrade.
Why wait?

I would suggest to add

	[Service]
        ExecStartPre=/usr/lib/apt/apt.systemd.daily update

to the apt-daily-upgrade service to make sure the local index
files are up-to-date. The previous download of the packages
run by apt-daily might have failed (if configured).