in Dataset/JS/AngularCalendar/calendar.js [296:305]
eventSourcesWatcher.onAdded = function (source) {
if (calendar && calendar.fullCalendar) {
calendar.fullCalendar(options);
if (attrs.calendar) {
uiCalendarConfig.calendars[attrs.calendar] = calendar;
}
calendar.fullCalendar('addEventSource', source);
sourcesChanged = true;
}
};