$ git clone -n https://src.fedoraproject.org/rpms/ocaml-octavius.git /var/lib/mock/f39-build-2472962-61498/root/chroot_tmpdir/scmroot/ocaml-octavius
Cloning into '/var/lib/mock/f39-build-2472962-61498/root/chroot_tmpdir/scmroot/ocaml-octavius'...
$ git fetch origin 039edcf20809622544ccc32c1419a1422d1be8a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-octavius
 * [new ref]         039edcf20809622544ccc32c1419a1422d1be8a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 039edcf Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild