$ git clone -n https://src.fedoraproject.org/rpms/rust-toml-span.git /var/lib/mock/f45-build-45521-823/root/chroot_tmpdir/scmroot/rust-toml-span
Cloning into '/var/lib/mock/f45-build-45521-823/root/chroot_tmpdir/scmroot/rust-toml-span'...
$ git fetch origin 75a11e21693d998cd217f6a456bd8f1475d429d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-toml-span
 * [new ref]         75a11e21693d998cd217f6a456bd8f1475d429d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75a11e2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild