[400] Build cycle?

$ vue init nuxt/starter nuxt-test
$ cd nuxt-test
$ npm install
$ npm dev
> nuxt-test@1.0.0 dev /Users/Breezewish/Development/nuxt-test
> nuxt

  nuxt:build App root: /Users/Breezewish/Development/nuxt-test +0ms
  nuxt:build Generating .nuxt/ files... +2ms
Ready on http://localhost:3000
  nuxt:build Generating routes... +12ms
  nuxt:build Generating files... +14ms
  nuxt:build Adding webpack middleware... +17ms
  build [==                  ] 10%(node:15297) DeprecationWarning: loaderUtils.parseQuery() received a non-string value which can be problematic, see https://github.com/webpack/loader-utils/issues/56
parseQuery() will be replaced with getOptions() in the next major version of loader-utils.
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nuxt rebuilt several times after initial build. Is it intentional or a bug?