$ git clone -n https://src.fedoraproject.org/rpms/kf5.git /var/lib/mock/f41-build-808936-146124/root/chroot_tmpdir/scmroot/kf5
Cloning into '/var/lib/mock/f41-build-808936-146124/root/chroot_tmpdir/scmroot/kf5'...
$ git fetch origin 6eb611a0a65287c74cc044c57a55a98cbc5cf1e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5
 * [new ref]         6eb611a0a65287c74cc044c57a55a98cbc5cf1e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6eb611a 5.116.0