[1535] i18n example broken on server load

How to reproduce: download https://github.com/nuxt/nuxt.js/tree/dev/examples/i18n yarn and then any:

yarn dev

yarn generate
hs -p 3000 dist/

yarn build
yarn start

and load http://localhost:3000/fr/about/

In all of the cases, the server will send the French html, but upon hydration it will silently (nothing in console) be replaced with English.

Furthermore, the active base state in the Vue devtool will be

locales:Array[2]
0:"en"
1:"fr"
locale:"fr"

while $vm0.$i18n.locale is 'en';