Case T-790/19: Judgment of the General Court of 20 October 2021 — Novolipetsk Steel v Commission (Measures that the European Union may take in relation to the combined effect of anti-dumping or anti-subsidy measures with safeguard measures — Importation of cold-rolled flat steel products and hot-rolled flat products of iron, non-alloy or other alloy steel — Modification of regulations imposing anti-dumping or anti-subsidy measures on products subject to safeguard measures — Principle of non-discrimination — Manifest error of assessment)