$ git clone -n https://src.fedoraproject.org/rpms/rust-toml_datetime.git /var/lib/mock/f45-build-45553-823/root/chroot_tmpdir/scmroot/rust-toml_datetime
Cloning into '/var/lib/mock/f45-build-45553-823/root/chroot_tmpdir/scmroot/rust-toml_datetime'...
$ git fetch origin 682efcc5b7502a5e410e5bf7135f660ed5f9916b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-toml_datetime
 * [new ref]         682efcc5b7502a5e410e5bf7135f660ed5f9916b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 682efcc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild