Meta descriptions & Polylang

I’m using Polylang to translate my posts. My website’s main language is English and when I fill manually the meta description field for some post in the English version everything seems to be okay.

But if I translate that same post to some other language the meta decription field is automatically copied from that English version of the post.

Any ideas how to fix this?

https://wordpress.org/plugins/wordpress-seo/