Adding 1 day to March24th in the Atlantic/Azores timezone yields the same day.

[dmarchin]

Describe the bug
Adding 1 day to March24th in the Atlantic/Azores timezone yields the same day.

To Reproduce
Steps to reproduce the behavior:

moment.tz.setDefault("Atlantic/Azores");
moment("2018-03-24", "YYYY-MM-DD").add(1, "days").format("YYYY-MM-DD")
"2018-03-24"

Expected behavior
Moment should correctly display the next day: "2018-03-25"

Desktop (please complete the following information):

• OS: Mac OS
• Browser Chrome

Moment-specific environment
Ran in chrome dev console on https://momentjs.com/

moment.tz.setDefault("Atlantic/Azores");
moment("2018-03-24", "YYYY-MM-DD").add(1, "days").format("YYYY-MM-DD")
"2018-03-24"

console.log((new Date()).toString())
console.log((new Date()).toLocaleString())
console.log((new Date()).getTimezoneOffset())
console.log(navigator.userAgent)
console.log(moment.version)
Thu Jan 10 2019 15:02:54 GMT-0500 (Eastern Standard Time)
1/10/2019, 3:02:54 PM
300
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36
2.23.0

[mattjohnsonpint]

Duplicate of #409, just a different time zone that also has midnight transitions. Tracking there. Thanks.