$ git clone -n https://src.fedoraproject.org/rpms/golang-gopkg-jcmturner-rpc-1.git /var/lib/mock/f45-build-12709-443/root/chroot_tmpdir/scmroot/golang-gopkg-jcmturner-rpc-1
Cloning into '/var/lib/mock/f45-build-12709-443/root/chroot_tmpdir/scmroot/golang-gopkg-jcmturner-rpc-1'...
$ git fetch origin 3097c20e8e4f700d96f261378bffeb71752dd189:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gopkg-jcmturner-rpc-1
 * [new ref]         3097c20e8e4f700d96f261378bffeb71752dd189 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3097c20 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild