$ git clone -n https://src.fedoraproject.org/rpms/rust-protobuf.git /var/lib/mock/f39-build-1526600-36080/root/chroot_tmpdir/scmroot/rust-protobuf
Cloning into '/var/lib/mock/f39-build-1526600-36080/root/chroot_tmpdir/scmroot/rust-protobuf'...
$ git fetch origin 7114dc51fddcf2ef5cf8f1140086aced4b8e33c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-protobuf
 * [new ref]         7114dc51fddcf2ef5cf8f1140086aced4b8e33c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7114dc5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild