(15)This Directive should be without prejudice to any restrictions or requirements under national law on bringing into account claims, on obligations to set-off, or on netting, for example relating to their reciprocity or the fact that they have been concluded prior to when the collateral taker knew or ought to have known of the commencement (or of any mandatory legal act leading to the commencement) of winding-up proceedings or reorganisation measures in respect of the collateral provider.