$ git clone -n https://src.fedoraproject.org/rpms/ocaml-uuseg.git /var/lib/mock/f42-build-865839-173538/root/chroot_tmpdir/scmroot/ocaml-uuseg
Cloning into '/var/lib/mock/f42-build-865839-173538/root/chroot_tmpdir/scmroot/ocaml-uuseg'...
$ git fetch origin 0fcc91c431b90283407d9bccc4f738b32f537c63:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-uuseg
 * [new ref]         0fcc91c431b90283407d9bccc4f738b32f537c63 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0fcc91c OCaml 5.3.0 rebuild for Fedora 42