$ git clone -n https://src.fedoraproject.org/rpms/golang-github-glog.git /var/lib/mock/f45-build-11928-436/root/chroot_tmpdir/scmroot/golang-github-glog
Cloning into '/var/lib/mock/f45-build-11928-436/root/chroot_tmpdir/scmroot/golang-github-glog'...
$ git fetch origin 4b21f6c74af6acd744ecc2b2e3133e32f92f6183:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-glog
 * [new ref]         4b21f6c74af6acd744ecc2b2e3133e32f92f6183 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b21f6c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild