$ git clone -n https://src.fedoraproject.org/rpms/golang-github-d2g-hardwareaddr.git /var/lib/mock/f38-build-side-42-init-devel-620864-26341/root/chroot_tmpdir/scmroot/golang-github-d2g-hardwareaddr
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-620864-26341/root/chroot_tmpdir/scmroot/golang-github-d2g-hardwareaddr'...
$ git fetch origin 2ada56282de4c1febb74a3ddd2ac05ff72471ae0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-d2g-hardwareaddr
 * [new ref]         2ada56282de4c1febb74a3ddd2ac05ff72471ae0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ada562 Upload sources