wordpress's version-release in FE4 is newer than the one in FE5 and devel: wordpress: 4: 0:2.0.3-4.fc4 (FE4) 5: 0:2.0.3-3.fc5 (FE5) 6: 0:2.0.3-3.fc6 (FE6) Fix: bump FE5 and devel to 4%{?dist} or greater and rebuild. To avoid problems like this in the future if a fix for an old branch only is needed so that all newer branches won't need rebuilding, append a dot and a digit *after* %{?dist}. https://www.redhat.com/archives/fedora-extras-list/2006-May/msg00083.html
FE5 and devel packages bumped and rebuilding now.