From 26039f920b38b27cf7dc0f16d43829543f704023 Mon Sep 17 00:00:00 2001
From: Sam Thomas <samuel.thomas@qubit.com>
Date: Thu, 10 Nov 2016 13:15:37 -0500
Subject: [PATCH] add validation for moments with invalid dates at construction

---
 src/lib/moment/constructor.js | 1 +
 src/test/moment/create.js     | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/src/lib/moment/constructor.js b/src/lib/moment/constructor.js
index 964c0aef6..a42301420 100644
--- a/src/lib/moment/constructor.js
+++ b/src/lib/moment/constructor.js
@@ -60,6 +60,7 @@ var updateInProgress = false;
 export function Moment(config) {
     copyConfig(this, config);
     this._d = new Date(config._d != null ? config._d.getTime() : NaN);
+    if (!this.isValid()) this._d = new Date(NaN);
     // Prevent infinite loop in case updateOffset creates new moment
     // objects.
     if (updateInProgress === false) {
diff --git a/src/test/moment/create.js b/src/test/moment/create.js
index 549b3c941..53b29789c 100644
--- a/src/test/moment/create.js
+++ b/src/test/moment/create.js
@@ -1100,3 +1100,8 @@ test('parsing only meridiem results in invalid date', function (assert) {
     assert.ok(moment('02:30 p more extra stuff', 'hh:mm a').isValid(), 'because other tokens were parsed, date is valid');
     assert.ok(moment('1/1/2016 extra data', ['a', 'M/D/YYYY']).isValid(), 'took second format, does not pick up on meridiem parsed from first format (good copy)');
 });
+
+test('invalid dates return invalid for methods that access the _d prop', function (assert) {
+    var momentAsDate = moment(['2015', '12', '1']).toDate()
+    assert.equal(momentAsDate, 'Invalid Date', 'toDate returns invalid');
+});
-- 
2.47.2