(1) If a financial collateral arrangement contains an obligation to provide financial collateral, or additional financial collateral, in order to take account of changes in the value of the financial collateral, or in the amount of the relevant financial obligations, the provision of financial collateral or additional, substituted or replacement financial collateral under such an obligation may not be invalidated or declared void or reversed only because -
(a) the provision was made on the day on which winding-up proceedings or reorganisation measures commenced, but before the commencement of those proceedings or measures, or during a period before, and defined by reference to -
(i) the commencement of winding-up proceedings or reorganisation measures, or
(ii) the making of a court order, or the taking of any other action, or the occurrence of any other event, during the course of those proceedings or measures, or
(b) the relevant financial obligations were incurred before the date on
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