$ git clone -n https://src.fedoraproject.org/rpms/rust-range_map_vec.git /var/lib/mock/f45-build-44273-812/root/chroot_tmpdir/scmroot/rust-range_map_vec
Cloning into '/var/lib/mock/f45-build-44273-812/root/chroot_tmpdir/scmroot/rust-range_map_vec'...
$ git fetch origin 7378485a0a5195a0ac76f893a51ac83261e81f07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-range_map_vec
 * [new ref]         7378485a0a5195a0ac76f893a51ac83261e81f07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7378485 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild