There is a blank line at the top of the CodeMirrorMerge component.

[tonymaa]

https://codesandbox.io/s/practical-taussig-xsuuih?file=/src/App.js

There is a blank line at the top of the CodeMirrorMerge component.

[jaywcjlove]

@tonymaa https://codesandbox.io/embed/https-github-com-uiwjs-react-codemirror-issues-487-q6n7xq?fontsize=14&hidenavigation=1&theme=dark

root.render(
-  <StrictMode>
    <App />
-  </StrictMode>
);