$ git clone -n https://src.fedoraproject.org/rpms/libmanette.git /var/lib/mock/f45-build-16519-487/root/chroot_tmpdir/scmroot/libmanette
Cloning into '/var/lib/mock/f45-build-16519-487/root/chroot_tmpdir/scmroot/libmanette'...
$ git fetch origin cb69b6248d008249df93b7a6a4e06c6c1f3420e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmanette
 * [new ref]         cb69b6248d008249df93b7a6a4e06c6c1f3420e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb69b62 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild