$ git clone -n https://src.fedoraproject.org/rpms/mdevctl.git /var/lib/mock/f39-build-2237238-53538/root/chroot_tmpdir/scmroot/mdevctl
Cloning into '/var/lib/mock/f39-build-2237238-53538/root/chroot_tmpdir/scmroot/mdevctl'...
$ git fetch origin f61b533b5e43ba4ff2b1f3fdeb536b65708e2925:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mdevctl
 * [new ref]         f61b533b5e43ba4ff2b1f3fdeb536b65708e2925 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f61b533 Update to 1.3.0