$ git clone -n https://src.fedoraproject.org/rpms/golang-github-lunixbochs-vtclean.git /var/lib/mock/f45-build-12198-439/root/chroot_tmpdir/scmroot/golang-github-lunixbochs-vtclean
Cloning into '/var/lib/mock/f45-build-12198-439/root/chroot_tmpdir/scmroot/golang-github-lunixbochs-vtclean'...
$ git fetch origin f67ccd75f8b7225c08032a178ae16b509d59d29a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-lunixbochs-vtclean
 * [new ref]         f67ccd75f8b7225c08032a178ae16b509d59d29a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f67ccd7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild