$ git clone -n https://src.fedoraproject.org/rpms/rust-piper.git /var/lib/mock/f40-build-2702132-70564/root/chroot_tmpdir/scmroot/rust-piper
Cloning into '/var/lib/mock/f40-build-2702132-70564/root/chroot_tmpdir/scmroot/rust-piper'...
$ git fetch origin 52f1cd37669a0bdd771fa510664cd17ca2bbf594:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-piper
 * [new ref]         52f1cd37669a0bdd771fa510664cd17ca2bbf594 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 52f1cd3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild