I thought the most likely culprit might be my hack for the growpart/sfdisk/mbr problem, but it seems like the kickstart file is actually truncated -- see http://koji.fedoraproject.org/koji/taskinfo?taskID=7900887 (and click on https://kojipkgs.fedoraproject.org//work/tasks/887/7900887/fedora-cloud-base...
Something is not right....
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