Dynamic-remotes shared config not work

[huanghlun]

I just cloned the git and try to run the demo in advanced-api/dynamic-remotes. I did not modified any code and just run. When I click the button 'Load App 2 Widget', I found that the react package which considered to be shared, load twice in my project. But in the rspack.config.js file, the react package is in the shared scope, so I think it is an issue.