$ git clone -n https://src.fedoraproject.org/rpms/garcon.git /var/lib/mock/f45-build-9605-406/root/chroot_tmpdir/scmroot/garcon
Cloning into '/var/lib/mock/f45-build-9605-406/root/chroot_tmpdir/scmroot/garcon'...
$ git fetch origin a5c61e8b050316b93cf3c15a2746f7f8758a2711:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/garcon
 * [new ref]         a5c61e8b050316b93cf3c15a2746f7f8758a2711 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5c61e8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild