moroshko / gatsby-emotion-theme-issue

Repro

1. git clone [e-mail]:moroshko/gatsby-emotion-theme-issue.git
2. cd gatsby-emotion-theme-issue
3. npm install
4. cd website
5. npm install
6. npm start

Open the developer tools and you'll see that website/src/components/button gets the theme as expected.

Now, in website/src/pages/index.js, import src/components/button instead, and you'll see that the Button doesn't get the theme anymore.