$ git clone -n https://src.fedoraproject.org/rpms/gau2grid.git /var/lib/mock/f45-build-9623-406/root/chroot_tmpdir/scmroot/gau2grid
Cloning into '/var/lib/mock/f45-build-9623-406/root/chroot_tmpdir/scmroot/gau2grid'...
$ git fetch origin dde72523bcacab7053a2eb9ae8c32acae47cf55b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gau2grid
 * [new ref]         dde72523bcacab7053a2eb9ae8c32acae47cf55b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dde7252 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild