$ git clone -n https://src.fedoraproject.org/rpms/rust-atomic.git /var/lib/mock/f39-build-1455067-32912/root/chroot_tmpdir/scmroot/rust-atomic
Cloning into '/var/lib/mock/f39-build-1455067-32912/root/chroot_tmpdir/scmroot/rust-atomic'...
$ git fetch origin ca3dbb956dd11381ca7f85473440ffe822eac44b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-atomic
 * [new ref]         ca3dbb956dd11381ca7f85473440ffe822eac44b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca3dbb9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild