$ git clone -n https://src.fedoraproject.org/rpms/R-rsvg.git /var/lib/mock/f40-build-789548-135900/root/chroot_tmpdir/scmroot/R-rsvg
Cloning into '/var/lib/mock/f40-build-789548-135900/root/chroot_tmpdir/scmroot/R-rsvg'...
$ git fetch origin b35faf2ed14643b2551598bc0debce5ee668e68e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-rsvg
 * [new ref]         b35faf2ed14643b2551598bc0debce5ee668e68e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b35faf2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild