$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-sortutil.git /var/lib/mock/f45-build-12738-443/root/chroot_tmpdir/scmroot/golang-modernc-sortutil
Cloning into '/var/lib/mock/f45-build-12738-443/root/chroot_tmpdir/scmroot/golang-modernc-sortutil'...
$ git fetch origin 4e4aa020c6a33975103113246c98df8eae5c0053:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-sortutil
 * [new ref]         4e4aa020c6a33975103113246c98df8eae5c0053 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e4aa02 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild