$ git clone -n https://src.fedoraproject.org/rpms/rust-sysinfo0.23.git /var/lib/mock/f40-build-2657743-66916/root/chroot_tmpdir/scmroot/rust-sysinfo0.23
Cloning into '/var/lib/mock/f40-build-2657743-66916/root/chroot_tmpdir/scmroot/rust-sysinfo0.23'...
$ git fetch origin bf8c6429f4a09bb5d4ff9ac9a29e4840bc9acc80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sysinfo0.23
 * [new ref]         bf8c6429f4a09bb5d4ff9ac9a29e4840bc9acc80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf8c642 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild