Ticket #29952: 29952.diff

src/wp-admin/js/editor-expand.js

@@ -590 +590 @@
                                 }
 
                                 adjust();
+                        }).on( 'wp-window-resized.editor-expand', function() {
+                                if ( mceEditor && ! mceEditor.isHidden() ) {
+                                        mceEditor.execCommand( 'wpAutoResize' );
+                                } else {
+                                        textEditorResize();
+                                }
                         });
 
                 $textEditor.on( 'focus.editor-expand input.editor-expand propertychange.editor-expand', textEditorResize );