After an update all my ZFS file systems are no longer automounted at boot time.

"systemctl status" does not report any problems, and "zfs list" lists them
correctly.

A manual "zfs mount -a" mounts them without any warning.

# lsb_release -a
LSB Version:   
core-5.0-amd64:core-5.0-noarch:desktop-5.0-amd64:desktop-5.0-noarch:imaging-5.0-amd64:imaging-5.0-noarch:languages-5.0-amd64:languages-5.0-noarch
Distributor ID: openSUSE project
Description:    openSUSE Leap 42.3
Release:        42.3
Codename:       n/a

# rpm -q -i zfs
Name        : zfs
Version     : 0.7.6
Release     : 1.1
Architecture: x86_64
Install Date: Tue Mar  6 14:23:14 2018
Group       : System/Filesystems
Size        : 1339272
License     : CDDL-1.0 and GPL-2.0+
Signature   : RSA/SHA256, Tue Feb  6 12:08:21 2018, Key ID 98c97fe7324e6311
Source RPM  : zfs-0.7.6-1.1.src.rpm
Build Date  : Tue Feb  6 12:07:22 2018
Build Host  : cloud114
Relocations : (not relocatable)
Vendor      : obs://build.opensuse.org/filesystems
URL         : http://zfsonlinux.org/
Summary     : The ZFS filesystem and utilities
Description :
ZFS is a combined file system and logical volume manager designed by
Sun Microsystems. The features of ZFS include protection against data
corruption, support for high storage capacities, integration of the
concepts of filesystem and volume management, snapshots and
copy-on-write clones, continuous integrity checking and automatic
repair, RAID-Z and native NFSv4 ACLs.

ZFS on Linux, which is also known as ZoL, includes fully functional
and stable SPA, DMU, ZVOL, and ZPL layers.
Distribution: filesystems / openSUSE_Leap_42.3

# mount (after manually mounted zfs)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
devtmpfs on /dev type devtmpfs
(rw,nosuid,size=32928996k,nr_inodes=8232249,mode=755)
securityfs on /sys/kernel/security type securityfs
(rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts
(rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup
(rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/freezer type cgroup
(rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/memory type cgroup
(rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/hugetlb type cgroup
(rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/pids type cgroup
(rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/perf_event type cgroup
(rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/devices type cgroup
(rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup
(rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/cpuset type cgroup
(rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup
(rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup
(rw,nosuid,nodev,noexec,relatime,blkio)
/dev/sda1 on / type btrfs (rw,relatime,ssd,space_cache,subvolid=5,subvol=/)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs
(rw,relatime,fd=29,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
/var/lib/snapd/snaps/core_3748.snap on /snap/core/3748 type squashfs
(ro,nodev,relatime)
/dev/sda1 on /var/lib/named type btrfs
(rw,relatime,ssd,space_cache,subvolid=265,subvol=/var/lib/named)
/dev/sda1 on /var/spool type btrfs
(rw,relatime,ssd,space_cache,subvolid=269,subvol=/var/spool)
/dev/sda1 on /boot/grub2/x86_64-efi type btrfs
(rw,relatime,ssd,space_cache,subvolid=258,subvol=/boot/grub2/x86_64-efi)
/dev/sda1 on /boot/grub2/i386-pc type btrfs
(rw,relatime,ssd,space_cache,subvolid=257,subvol=/boot/grub2/i386-pc)
/dev/sda1 on /usr/local type btrfs
(rw,relatime,ssd,space_cache,subvolid=262,subvol=/usr/local)
/dev/sda1 on /var/lib/pgsql type btrfs
(rw,relatime,ssd,space_cache,subvolid=266,subvol=/var/lib/pgsql)
/dev/sda1 on /var/lib/mailman type btrfs
(rw,relatime,ssd,space_cache,subvolid=264,subvol=/var/lib/mailman)
/dev/sda1 on /srv type btrfs
(rw,relatime,ssd,space_cache,subvolid=260,subvol=/srv)
/dev/sda1 on /var/tmp type btrfs
(rw,relatime,ssd,space_cache,subvolid=270,subvol=/var/tmp)
/dev/sda1 on /.snapshots type btrfs
(rw,relatime,ssd,space_cache,subvolid=276,subvol=/.snapshots)
/dev/sda1 on /var/opt type btrfs
(rw,relatime,ssd,space_cache,subvolid=268,subvol=/var/opt)
/dev/sda1 on /var/log type btrfs
(rw,relatime,ssd,space_cache,subvolid=267,subvol=/var/log)
/dev/sda1 on /opt type btrfs
(rw,relatime,ssd,space_cache,subvolid=259,subvol=/opt)
/dev/sda1 on /var/crash type btrfs
(rw,relatime,ssd,space_cache,subvolid=263,subvol=/var/crash)
/dev/sda1 on /tmp type btrfs
(rw,relatime,ssd,space_cache,subvolid=261,subvol=/tmp)
tank on /tank type zfs (rw,xattr,noacl)
tank/home on /tank/home type zfs (rw,xattr,noacl)
tank/iso on /tank/iso type zfs (rw,xattr,noacl)
tank/libvirt on /tank/libvirt type zfs (rw,xattr,noacl)
tmpfs on /run/user/1000 type tmpfs
(rw,nosuid,nodev,relatime,size=6595752k,mode=700,uid=1000,gid=100)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse
(rw,nosuid,nodev,relatime,user_id=1000,group_id=100)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)