$ git clone -n https://src.fedoraproject.org/rpms/kdelibs.git /var/lib/mock/f40-build-2246743-53842/root/chroot_tmpdir/scmroot/kdelibs
Cloning into '/var/lib/mock/f40-build-2246743-53842/root/chroot_tmpdir/scmroot/kdelibs'...
$ git fetch origin 635e8edb846a27fecb53a53d7a9ab64e48a79c80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdelibs
 * [new ref]         635e8edb846a27fecb53a53d7a9ab64e48a79c80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 635e8ed Fix herqq conditional.