From bee7bd56fd905721e2fea6d057c5ee72945277aa Mon Sep 17 00:00:00 2001
From: melloware <mellowaredev@gmail.com>
Date: Sat, 27 May 2023 08:12:01 -0400
Subject: [PATCH] Fix #4456: Calendar showMinMaxRange NPE

---
 components/lib/calendar/Calendar.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/lib/calendar/Calendar.js b/components/lib/calendar/Calendar.js
index 141e3f91bd..0a38d7dcc3 100644
--- a/components/lib/calendar/Calendar.js
+++ b/components/lib/calendar/Calendar.js
@@ -950,7 +950,7 @@ export const Calendar = React.memo(
         };
 
         const setNavigationState = (newViewDate) => {
-            if (!props.showMinMaxRange || props.view !== 'date' || !overlayRef.current) {
+            if (!newViewDate || !props.showMinMaxRange || props.view !== 'date' || !overlayRef.current) {
                 return;
             }
 
@@ -972,7 +972,7 @@ export const Calendar = React.memo(
                     firstDayOfMonth.setMonth(11, 1);
                     firstDayOfMonth.setFullYear(firstDayOfMonth.getFullYear() - 1);
                 } else {
-                    firstDayOfMonth.setMonth(firstDayOfMonth.getMonth() - 1, 1);
+                    firstDayOfMonth.setMonth(firstDayOfMonth.getMonth(), 1);
                 }
 
                 firstDayOfMonth.setHours(0);