viteOptions emptyOutDir is false and has no effect

[etjson]

export default defineUserConfig({
  bundler: viteBundler({
    viteOptions: {
      build: {
        emptyOutDir: false,
      },
    }
  }),
  theme: defaultTheme()
})

After configuration, dist will still be cleared

[huage404]

I ran into a similar problem, the content passed by viteOptions didn't seem to work, I was using version 2.0.0-rc.18