Bugfix: Loss of locale due to getLocaleData

[STK913]

Hello, when we want to use multiple configurations of "workinghours", we need to use the locale, but since getLocaleData refers to "moment" at the global level, the configuration is lost by calling the nextTransitionTime, isBusinessDay, isWorkingDay and isHoliday methods... (I advise you to check the behavior of each method).

// Here is my test code
bugfix() {
	console.log(moment.localeData()._workinghours); // Return the default configuration

	moment.updateLocale("test", {workinghours: {0: ['04:00:00', '20:00:00'], 1: ['04:00:00', '20:00:00'], 2: ['04:00:00', '20:00:00'], 3: ['04:00:00', '20:00:00'], 4: null, 5: null, 6: null}});
	moment.locale("en"); // To keep the default English locale

	let startMoment = moment().locale("test").nextWorkingTime();
	let endMoment = startMoment.nextTransitionTime().moment;
	console.log(endMoment.toDate()); // Fail
}