$ git clone -n https://src.fedoraproject.org/rpms/ocaml-stdio.git /var/lib/mock/f39-build-1786670-41718/root/chroot_tmpdir/scmroot/ocaml-stdio
Cloning into '/var/lib/mock/f39-build-1786670-41718/root/chroot_tmpdir/scmroot/ocaml-stdio'...
$ git fetch origin 1c65fb8b4e6e89e4ad4d32f395467011842a696c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-stdio
 * [new ref]         1c65fb8b4e6e89e4ad4d32f395467011842a696c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c65fb8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild