message: chore(replace): use preventAssignment option
diff: @@ -41,6 +41,7 @@ export const baseConfig = ({ mainFile = pkg.main, moduleFile = pkg.module, injec
  __REACT_FLOW_VERSION__: JSON.stringify(pkg.version),
  // this comes from the easy-peasy dependency
  'process.env.FORCE_SIMILAR_INSTEAD_OF_MAP': false,
  + preventAssignment: true,
  }),
  bundleSize(),
  postcss({
  