$ git clone -n https://src.fedoraproject.org/rpms/libXrender.git /var/lib/mock/f40-build-2295757-56338/root/chroot_tmpdir/scmroot/libXrender
Cloning into '/var/lib/mock/f40-build-2295757-56338/root/chroot_tmpdir/scmroot/libXrender'...
$ git fetch origin 46351ffa3467aeb662b492ce1e5551b91299d144:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libXrender
 * [new ref]         46351ffa3467aeb662b492ce1e5551b91299d144 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46351ff Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild