$ git clone -n https://src.fedoraproject.org/rpms/rust-bincode_derive.git /var/lib/mock/f45-build-40468-772/root/chroot_tmpdir/scmroot/rust-bincode_derive
Cloning into '/var/lib/mock/f45-build-40468-772/root/chroot_tmpdir/scmroot/rust-bincode_derive'...
$ git fetch origin adf638744fc808054b24eef084aa39bb3222d679:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bincode_derive
 * [new ref]         adf638744fc808054b24eef084aa39bb3222d679 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at adf6387 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild