$ git clone -n https://src.fedoraproject.org/rpms/golang-github-posener-complete-2.git /var/lib/mock/f45-build-12354-441/root/chroot_tmpdir/scmroot/golang-github-posener-complete-2
Cloning into '/var/lib/mock/f45-build-12354-441/root/chroot_tmpdir/scmroot/golang-github-posener-complete-2'...
$ git fetch origin d468220861b43406dc50523f484bfdd85a48facc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-posener-complete-2
 * [new ref]         d468220861b43406dc50523f484bfdd85a48facc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d468220 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild