chore: update branch with master

Author: martinmunillas

packages/use-intl/src/core/createFormatter.tsx

@@ -171,14 +171,14 @@ export default function createFormatter({
     formatOrOptions?: string | DateTimeFormatOptions
   ) {
     return getFormattedValue(
-      [start, end],
       formatOrOptions,
       formats?.dateTime,
       (options) => {
         options = applyGlobalTimeZone(options);
 
         return new Intl.DateTimeFormat(locale, options).formatRange(start, end);
-      }
+      },
+      () => [dateTime(start), dateTime(end)].join(' – ')
     );
   }
 

packages/use-intl/test/core/createFormatter.test.tsx

@@ -286,6 +286,19 @@ describe('dateTimeRange', () => {
       )
     ).toBe('1/10/06, 11:00 AM – 12:00 PM'); // 1 hour more given that the timezone is Europe/Berlin and the date is in UTC
   });
+  it('returns a reasonable fallback if an invalid format is provided', () => {
+    const formatter = createFormatter({
+      locale: 'en',
+      timeZone: 'Europe/Berlin'
+    });
+    expect(
+      formatter.dateTimeRange(
+        new Date(2007, 0, 10, 10, 0, 0),
+        new Date(2008, 0, 10, 11, 0, 0),
+        'unknown'
+      )
+    ).toBe('1/10/2007 – 1/10/2008');
+  });
 });
 
 describe('list', () => {