$ git clone -n https://src.fedoraproject.org/rpms/ocaml-postgresql.git /var/lib/mock/f42-build-865556-173304/root/chroot_tmpdir/scmroot/ocaml-postgresql
Cloning into '/var/lib/mock/f42-build-865556-173304/root/chroot_tmpdir/scmroot/ocaml-postgresql'...
$ git fetch origin 22bff9107ea7e306f4a37d529d479e98d7fa23df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-postgresql
 * [new ref]         22bff9107ea7e306f4a37d529d479e98d7fa23df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22bff91 OCaml 5.3.0 rebuild for Fedora 42