$ git clone -n https://src.fedoraproject.org/rpms/ocaml-version.git /var/lib/mock/f39-build-1967229-43300/root/chroot_tmpdir/scmroot/ocaml-version
Cloning into '/var/lib/mock/f39-build-1967229-43300/root/chroot_tmpdir/scmroot/ocaml-version'...
$ git fetch origin f680c3916801449ae0fc28a89d35ee8e0feb26b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-version
 * [new ref]         f680c3916801449ae0fc28a89d35ee8e0feb26b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f680c39 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild