$ git clone -n https://src.fedoraproject.org/rpms/rust-pyo3_0.16.git /var/lib/mock/f39-build-1500959-34808/root/chroot_tmpdir/scmroot/rust-pyo3_0.16
Cloning into '/var/lib/mock/f39-build-1500959-34808/root/chroot_tmpdir/scmroot/rust-pyo3_0.16'...
$ git fetch origin d9cbefd8de9336cbdcbd41f796dc747b3505635e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pyo3_0.16
 * [new ref]         d9cbefd8de9336cbdcbd41f796dc747b3505635e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9cbefd Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild