$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ocplib-simplex.git /var/lib/mock/f40-build-2068530-49293/root/chroot_tmpdir/scmroot/ocaml-ocplib-simplex
Cloning into '/var/lib/mock/f40-build-2068530-49293/root/chroot_tmpdir/scmroot/ocaml-ocplib-simplex'...
$ git fetch origin ba3adb8ddfb0b10bbfd44c91c1a72318759cfd3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ocplib-simplex
 * [new ref]         ba3adb8ddfb0b10bbfd44c91c1a72318759cfd3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba3adb8 New upstream version 0.5