Proposal for lang_crosspost enhancement

[taringamberini]

I've seen that lang_crosspost: true works as documented only if it is applied to posts written in the site main language. But I expected that the post would be cross-posted to all languages different from the one in which it is declared, independently from the main language.

So if the case was:

• en (main language)
• de
• es

a post which declares in YAML front-matter:

lang: de
lang_crosspost: true

should be cross-posted to both en (main language) and es indexes.

What do you think about this proposal of enhancement?
Tarin