1 files changed, 19 insertions, 12 deletions
diff --git a/bower_components/moment/src/lib/units/offset.js b/bower_components/moment/src/lib/units/offset.js
index 75aeb02..33288c0 100644
--- a/bower_components/moment/src/lib/units/offset.js
+++ b/bower_components/moment/src/lib/units/offset.js
@@ -1,11 +1,12 @@
 import zeroFill from '../utils/zero-fill';
 import { createDuration } from '../duration/create';
 import { addSubtract } from '../moment/add-subtract';
-import { isMoment } from '../moment/constructor';
+import { isMoment, copyConfig } from '../moment/constructor';
 import { addFormatToken } from '../format/format';
 import { addRegexToken, matchOffset } from '../parse/regex';
 import { addParseToken } from '../parse/token';
 import { createLocal } from '../create/local';
+import { prepareConfig } from '../create/from-anything';
 import { createUTC } from '../create/utc';
 import isDate from '../utils/is-date';
 import toInt from '../utils/to-int';
@@ -67,7 +68,6 @@ export function cloneWithOffset(input, model) {
     } else {
         return createLocal(input).local();
     }
-    return model._isUTC ? createLocal(input).zone(model._offset || 0) : createLocal(input).local();
 }
 
 function getDateOffset (m) {
@@ -167,12 +167,7 @@ export function setOffsetToParsedOffset () {
 }
 
 export function hasAlignedHourOffset (input) {
-    if (!input) {
-        input = 0;
-    }
-    else {
-        input = createLocal(input).utcOffset();
-    }
+    input = input ? createLocal(input).utcOffset() : 0;
 
     return (this.utcOffset() - input) % 60 === 0;
 }
@@ -185,12 +180,24 @@ export function isDaylightSavingTime () {
 }
 
 export function isDaylightSavingTimeShifted () {
-    if (this._a) {
-        var other = this._isUTC ? createUTC(this._a) : createLocal(this._a);
-        return this.isValid() && compareArrays(this._a, other.toArray()) > 0;
+    if (typeof this._isDSTShifted !== 'undefined') {
+        return this._isDSTShifted;
+    }
+
+    var c = {};
+
+    copyConfig(c, this);
+    c = prepareConfig(c);
+
+    if (c._a) {
+        var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
+        this._isDSTShifted = this.isValid() &&
+            compareArrays(c._a, other.toArray()) > 0;
+    } else {
+        this._isDSTShifted = false;
     }
 
-    return false;
+    return this._isDSTShifted;
 }
 
 export function isLocal () {