python-kiwi-debuginfo-1.9.38-1.fc20.x86_64 is empty. If there's nothing to generate debug info from, the -debuginfo subpackage should probably be explicitly disabled.
Kiwi should be noarch, but since the glade subpackage installs Glade plugins in arch-dependent directories. I'll temporarily disable debug info generation and try to see how fixing Glade to load properly noarch plugins later. Thanks for reporting this issue :)
Fixed in rawhide: http://koji.fedoraproject.org/koji/taskinfo?taskID=5805934