Ensure valueOf returns NaN for invalid instances (#1082)

dev-ghostly · web-flow · commit 341beac0fb2c · 2023-12-29T21:34:50.000+11:00
Closes #1075
diff --git a/moment-timezone.js b/moment-timezone.js
@@ -640,7 +640,7 @@
 			offset;
 
 		if (mom._z === undefined) {
-			if (zone && needsOffset(mom) && !mom._isUTC) {
+			if (zone && needsOffset(mom) && !mom._isUTC && mom.isValid()) {
 				mom._d = moment.utc(mom._a)._d;
 				mom.utc().add(zone.parse(mom), 'minutes');
 			}

Original file line number	Diff line number	Diff line change
`@@ -640,7 +640,7 @@`
`640`	`640`	`offset;`
`641`	`641`
`642`	`642`	`if (mom._z === undefined) {`
`643`		`- if (zone && needsOffset(mom) && !mom._isUTC) {`
	`643`	`+ if (zone && needsOffset(mom) && !mom._isUTC && mom.isValid()) {`
`644`	`644`	`mom._d = moment.utc(mom._a)._d;`
`645`	`645`	`mom.utc().add(zone.parse(mom), 'minutes');`
`646`	`646`	`}`