$ git clone -n https://src.fedoraproject.org/rpms/ocaml-zip.git /var/lib/mock/f45-build-20769-573/root/chroot_tmpdir/scmroot/ocaml-zip
Cloning into '/var/lib/mock/f45-build-20769-573/root/chroot_tmpdir/scmroot/ocaml-zip'...
$ git fetch origin 39db4cb05f01838d870448a8b8341a3978d21b81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-zip
 * [new ref]         39db4cb05f01838d870448a8b8341a3978d21b81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39db4cb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild