- The old method (link to `?locale=#{l.to_s}`) was not functional for path that already has query params in current path (such as `/user/spree_user/password/edit?reset_password_token=`) ;
- This seems that the best way to handle this, is to create a new route, new method that effectively set the lang (not the locale actually...) and then redirect_back (ie. using the HTTP_REFERER, with a fallback to `/`)
s
This affects only top bar menu items for:
* Language
* Profile
This does not update the "Log in" menu item, because the currently
selected icon might not be self explanatory.
