(h) It is also important to draw a distinction between cases in which one party, after litigating for some time, effectively surrenders to the other, and cases where some supervening event, or settlement, so removes, or modifies, the subject of the dispute that, although it could not be said that one side has simply won, no issue remains between the parties except that of costs. In the former type of case, there will commonly be lacking any basis for an exercise of the court's discretion otherwise than by an award of costs by the successful party. It is the latter type of case that usually creates problems, since there may be difficulty in discerning a clear reason why one party, rather than the other, should bear the costs: One.Tel Ltd v Deputy Commissioner of Taxation (2000) 101 FCR 548 at 553; cited with approval in Edwards Madigan Torzillo Briggs Pty Ltd v Stack [2003] NSWCA 302 per Davies AJA (with whom Mason P and Meagher JA agreed) at [5];