Whether payment of the debt during pending definitive mainlevée proceedings makes the matter moot and how costs must be allocated.
The payment amounted to recognition of the debt and rendered the mainlevée proceedings moot; costs had to be borne by the debtor.
Payment during enforcement is equivalent to withdrawing the opposition. If it occurs while mainlevée is pending, the request loses its object. The first judge wrongly treated the creditor's notice as a withdrawal of the mainlevée request.