$ git clone -n https://src.fedoraproject.org/rpms/R-polynom.git /var/lib/mock/f38-build-side-42-init-devel-830134-28366/root/chroot_tmpdir/scmroot/R-polynom
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-830134-28366/root/chroot_tmpdir/scmroot/R-polynom'...
$ git fetch origin 280ceca94f6e0d2989b561f64978354870261e07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-polynom
 * [new ref]         280ceca94f6e0d2989b561f64978354870261e07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 280ceca Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild