$ git clone -n https://src.fedoraproject.org/rpms/ocaml-curl.git /var/lib/mock/f42-build-865810-173520/root/chroot_tmpdir/scmroot/ocaml-curl
Cloning into '/var/lib/mock/f42-build-865810-173520/root/chroot_tmpdir/scmroot/ocaml-curl'...
$ git fetch origin b727ed176eafff4ad534bec2640d3730ebbc04e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-curl
 * [new ref]         b727ed176eafff4ad534bec2640d3730ebbc04e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b727ed1 OCaml 5.3.0 rebuild for Fedora 42