$ git clone -n https://src.fedoraproject.org/rpms/ocaml-gen.git /var/lib/mock/f40-build-2358330-60309/root/chroot_tmpdir/scmroot/ocaml-gen
Cloning into '/var/lib/mock/f40-build-2358330-60309/root/chroot_tmpdir/scmroot/ocaml-gen'...
$ git fetch origin 157fb0568f73c4c276cd58e01aece70ec331c9dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-gen
 * [new ref]         157fb0568f73c4c276cd58e01aece70ec331c9dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 157fb05 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild