The repository has a 4.11 branch, we should have an ebuild for that. Renaming does the trick. Reproducible: Always
Thanks for reporting. This is fixed in kde overlay, please sync. http://git.overlays.gentoo.org/gitweb/?p=proj/kde.git;a=commit;h=76c9d34decac3fd8b8b1a62211a360623d0e57f2