$ git clone -n https://src.fedoraproject.org/rpms/rust-rpds.git /var/lib/mock/f45-build-44489-814/root/chroot_tmpdir/scmroot/rust-rpds
Cloning into '/var/lib/mock/f45-build-44489-814/root/chroot_tmpdir/scmroot/rust-rpds'...
$ git fetch origin 347d31880123cfdd70c86bbd88bbb3f82501534d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rpds
 * [new ref]         347d31880123cfdd70c86bbd88bbb3f82501534d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 347d318 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild