Ticket #33059: 33059.2.patch

src/wp-admin/js/post.js

@@ -649 +649 @@
 
                 $timestampdiv.siblings('a.edit-timestamp').click( function( event ) {
                         if ( $timestampdiv.is( ':hidden' ) ) {
-                                $timestampdiv.slideDown('fast');
-                                $('#mm').focus();
+                                $timestampdiv.slideDown( 'fast', function() {
+                                        $( 'input, select', $timestampdiv.find( '.timestamp-wrap' ) ).first().focus();
+                                } );
                                 $(this).hide();
                         }
                         event.preventDefault();