$ git clone -n https://src.fedoraproject.org/rpms/R-gamlss.dist.git /var/lib/mock/f45-build-6130-346/root/chroot_tmpdir/scmroot/R-gamlss.dist
Cloning into '/var/lib/mock/f45-build-6130-346/root/chroot_tmpdir/scmroot/R-gamlss.dist'...
$ git fetch origin 03e1be3ffabf14e317b36d35d06fd6bdc16b4d74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gamlss.dist
 * [new ref]         03e1be3ffabf14e317b36d35d06fd6bdc16b4d74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03e1be3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild