Currency.java provides mechanism to load a new currency at runtime via CurrencyData.properties. Currently, we only test the behavior associated with the current date, (either before OR after the cut-over). However, this can lead to unexpected failures if the cut-over mechanism is broken and we transition from before to after the cut-over date/time behavior.

We should test both the before AND after behavior for a cut-over currency defined in CurrencyData.properties, regardless of the current date/time.