$ git clone -n https://src.fedoraproject.org/rpms/rust-bzip2-sys.git /var/lib/mock/f39-build-1455153-32912/root/chroot_tmpdir/scmroot/rust-bzip2-sys
Cloning into '/var/lib/mock/f39-build-1455153-32912/root/chroot_tmpdir/scmroot/rust-bzip2-sys'...
$ git fetch origin 173b2f45ee25a473fabd4a27e1f1f670ab7282f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bzip2-sys
 * [new ref]         173b2f45ee25a473fabd4a27e1f1f670ab7282f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 173b2f4 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild