$ git clone -n https://src.fedoraproject.org/rpms/powertop.git /var/lib/mock/f40-build-2222027-52696/root/chroot_tmpdir/scmroot/powertop
Cloning into '/var/lib/mock/f40-build-2222027-52696/root/chroot_tmpdir/scmroot/powertop'...
$ git fetch origin f3d9e1e1a8d91a1889c38995b88510119671dec3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/powertop
 * [new ref]         f3d9e1e1a8d91a1889c38995b88510119671dec3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f3d9e1e Converted license to SPDX