fix fb

packages/app/src/components/PageEditor.tsx

@@ -310,7 +310,7 @@ const PageEditor = React.memo((): JSX.Element => {
       if (pageId != null) {
         formData.append('page_id', pageId);
       }
-      if (markdownToSave.current != null) {
+      if (pageId == null && markdownToSave.current != null) {
         formData.append('page_body', markdownToSave.current);
       }