message: Prevent error when both preact and react exists in package
diff: @@ -82,7 +82,7 @@ export const makePlugins = ({ isProduction } = {}) => [
  pragmaFrag: 'React.Fragment',
  useBuiltIns: true
  }],
  - settings.hasPreact && ['@babel/plugin-transform-react-jsx', {
  + !settings.hasReact && settings.hasPreact && ['@babel/plugin-transform-react-jsx', {
  pragma: 'h',
  useBuiltIns: true
  }],
  