Just did a KDE kickstart install of F23_TC11 and I ended up with kernel-debug-core/modules installed due to https://bugzilla.redhat.com/show_bug.cgi?id=1192189 and kde-desktop bringing in plasma-nm-l2tp by default (because it requires xl2tpd via NetworkManager-l2tp).
Some possible quick fixes seem to be: - Do not have plasma-nm-l2tp in kde-desktop. This may be desirable in any case to avoid bringing in kernel-modules-extra by default. - Move kmod(l2tp_ppp.ko) to the core kernel package - Include kernel-modules-extra in @kde-desktop
Personally I'm just not installing plasma-nm-l2tp as I don't need it, but perhaps this will hit other users as well.