From d0586976443c4255ba122fba33bbe045069fc461 Mon Sep 17 00:00:00 2001
From: Mauro Bieg <mb21@users.noreply.github.com>
Date: Wed, 23 Oct 2019 20:01:25 +0200
Subject: [PATCH] fix(widget-date): allow empty value (#2705)

---
 packages/netlify-cms-widget-date/src/DateControl.js         | 2 +-
 packages/netlify-cms-widget-datetime/src/DateTimeControl.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/netlify-cms-widget-date/src/DateControl.js b/packages/netlify-cms-widget-date/src/DateControl.js
index 49909c55..c22e5923 100644
--- a/packages/netlify-cms-widget-date/src/DateControl.js
+++ b/packages/netlify-cms-widget-date/src/DateControl.js
@@ -89,7 +89,7 @@ export default class DateControl extends React.Component {
      * Otherwise produce a date object.
      */
     if (format) {
-      const formattedValue = moment(datetime).format(format);
+      const formattedValue = datetime ? moment(datetime).format(format) : '';
       onChange(formattedValue);
     } else {
       const value = moment.isMoment(datetime) ? datetime.toDate() : datetime;
diff --git a/packages/netlify-cms-widget-datetime/src/DateTimeControl.js b/packages/netlify-cms-widget-datetime/src/DateTimeControl.js
index 9a23a3f9..5a7d883b 100644
--- a/packages/netlify-cms-widget-datetime/src/DateTimeControl.js
+++ b/packages/netlify-cms-widget-datetime/src/DateTimeControl.js
@@ -74,7 +74,7 @@ export default class DateTimeControl extends React.Component {
      * Otherwise produce a date object.
      */
     if (format) {
-      const formattedValue = moment(datetime).format(format);
+      const formattedValue = datetime ? moment(datetime).format(format) : '';
       onChange(formattedValue);
     } else {
       const value = moment.isMoment(datetime) ? datetime.toDate() : datetime;