$ git clone -n https://src.fedoraproject.org/rpms/rust-primal-sieve.git /var/lib/mock/f38-build-side-43-rust-devel-1418191-31459/root/chroot_tmpdir/scmroot/rust-primal-sieve
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1418191-31459/root/chroot_tmpdir/scmroot/rust-primal-sieve'...
$ git fetch origin 5dde0eca9eae08b500105dc59c072b58ba0d571b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-primal-sieve
 * [new ref]         5dde0eca9eae08b500105dc59c072b58ba0d571b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5dde0ec Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild