why koji try to build on ppc when ExcludeArch ppc?

[Farkas Levente]

hi,
i try to build gstreamer-java for F-10. the spec file contians the lines:
----------------------------
# for ExcludeArch see bug: 468831
ExcludeArch:    ppc, ppc64
----------------------------
but koji still try to build for ppc:
http://koji.fedoraproject.org/koji/taskinfo?taskID=933620
and of course this build fails.
why try to build on ppc? it's a koji bug?
thanks in advance.

-- 
  Levente                               "Si vis pacem para bellum!"