$ git clone -n https://src.fedoraproject.org/rpms/cxxopts.git /var/lib/mock/f40-build-2276265-55141/root/chroot_tmpdir/scmroot/cxxopts
Cloning into '/var/lib/mock/f40-build-2276265-55141/root/chroot_tmpdir/scmroot/cxxopts'...
$ git fetch origin a4bb0bf87cb1f5a0cf1387595fc8ac28b09252b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cxxopts
 * [new ref]         a4bb0bf87cb1f5a0cf1387595fc8ac28b09252b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4bb0bf Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild