$ git clone -n https://src.fedoraproject.org/rpms/ocaml-mlmpfr.git /var/lib/mock/f42-build-872292-177964/root/chroot_tmpdir/scmroot/ocaml-mlmpfr
Cloning into '/var/lib/mock/f42-build-872292-177964/root/chroot_tmpdir/scmroot/ocaml-mlmpfr'...
$ git fetch origin acfd72b0149c5e37b4f95544db8bf7c66796709a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-mlmpfr
 * [new ref]         acfd72b0149c5e37b4f95544db8bf7c66796709a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at acfd72b Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild