$ git clone -n https://src.fedoraproject.org/rpms/rust-ciborium.git /var/lib/mock/f40-build-2640217-66392/root/chroot_tmpdir/scmroot/rust-ciborium
Cloning into '/var/lib/mock/f40-build-2640217-66392/root/chroot_tmpdir/scmroot/rust-ciborium'...
$ git fetch origin 0987579164917479b1ec5e9aec968eaae667a4fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ciborium
 * [new ref]         0987579164917479b1ec5e9aec968eaae667a4fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0987579 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild