Comment # 8 on bug 1141597 from Thomas Blume

The setup of the nic by systemd-networkd failed, because the lower layer link
of host0 was down.
The above patch fixed that for the first test, but on the next test for dhcp
the link seems to be taken down again.
For details, see: http://emerson.suse.de/tests/1447

However, it rather looks like this isn't a systemd, but a test procedure issue.
Dimstar, ok for you?