$ git clone -n https://src.fedoraproject.org/rpms/cairomm1.16.git /var/lib/mock/f41-build-side-1-2656034-28431/root/chroot_tmpdir/scmroot/cairomm1.16
Cloning into '/var/lib/mock/f41-build-side-1-2656034-28431/root/chroot_tmpdir/scmroot/cairomm1.16'...
$ git fetch origin 30323c0d765f8694fa3bfc5de72b1f45831192d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cairomm1.16
 * [new ref]         30323c0d765f8694fa3bfc5de72b1f45831192d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30323c0 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild