By judicious used of dnf, grep, and awk, I am now down to:
[root@anglides ~]# dnf check-update
Last metadata expiration check: 0:00:28 ago on Sun 05 Aug 2018 19:57:06
BST.
[root@anglides ~]# dnf check
sudo-1.8.23-1.fc29.x86_64 is a duplicate with sudo-1.8.23-3.fc29.x86_64
systemd-239-1.fc29.x86_64 is a duplicate with systemd-239-3.fc29.x86_64
systemd-container-239-1.fc29.x86_64 is a duplicate with systemd-
container-239-3.fc29.x86_64
systemd-devel-239-1.fc29.x86_64 is a duplicate with systemd-devel-239-
3.fc29.x86_64
systemd-libs-239-1.fc29.x86_64 is a duplicate with systemd-libs-239-
3.fc29.x86_64
systemd-pam-239-1.fc29.x86_64 is a duplicate with systemd-pam-239-
3.fc29.x86_64
systemd-udev-239-1.fc29.x86_64 is a duplicate with systemd-udev-239-
3.fc29.x86_64
Error: Check discovered 7 problem(s)
but I have no idea if stuff is actually internally self consistent.
--
Russel.
===========================================
Dr Russel Winder t: +44 20 7585 2200
41 Buckmaster Road m: +44 7770 465 077
London SW11 1EN, UK w:
www.russel.org.uk