$ git clone -n https://src.fedoraproject.org/rpms/ocaml-compiler-libs-janestreet.git /var/lib/mock/f41-build-811206-147255/root/chroot_tmpdir/scmroot/ocaml-compiler-libs-janestreet
Cloning into '/var/lib/mock/f41-build-811206-147255/root/chroot_tmpdir/scmroot/ocaml-compiler-libs-janestreet'...
$ git fetch origin 78fbc217275d22a65547d25043297b0650d4e4e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-compiler-libs-janestreet
 * [new ref]         78fbc217275d22a65547d25043297b0650d4e4e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78fbc21 OCaml 5.2.0 for Fedora 41