Comment # 7 on bug 1006815 from Neil Brown

No, it doesn't really make sense for the nfs-client service to mount
filesystems.  systemd should do that directly.
Whenever yast adds something to /etc/fstab it should "systemctl daemon-reload"
so that the generators get run and systemd learns about the new contents of
/etc/fstab.
Do you see any problem with making yast do that?