$ git clone -n https://src.fedoraproject.org/rpms/kf6-kservice.git /var/lib/mock/f42-build-side-1-3585195-46903/root/chroot_tmpdir/scmroot/kf6-kservice
Cloning into '/var/lib/mock/f42-build-side-1-3585195-46903/root/chroot_tmpdir/scmroot/kf6-kservice'...
$ git fetch origin 3657fd9d94088b47969c0e785d0ee0b5c9509786:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kservice
 * [new ref]         3657fd9d94088b47969c0e785d0ee0b5c9509786 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3657fd9 6.16.0