title: Show posts for default language if switched to language that has no posts added yet
body: <p>I have a site that uses Polylang plugin for languages. I have two languages, one default and another. All posts currently are added using default language, but when I switch to another language, nothing has been showing up. I would like in this case show content from default language instead and use another language when it will be added. Is it possible to make this happen?</p>