$ git clone -n https://src.fedoraproject.org/rpms/ocaml-variantslib.git /var/lib/mock/f42-build-872731-178201/root/chroot_tmpdir/scmroot/ocaml-variantslib
Cloning into '/var/lib/mock/f42-build-872731-178201/root/chroot_tmpdir/scmroot/ocaml-variantslib'...
$ git fetch origin c252224a043daa1388cb523844a32bcc8dde9f23:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-variantslib
 * [new ref]         c252224a043daa1388cb523844a32bcc8dde9f23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c252224 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild