Docs appear in "Recent Posts"

[MarkLagodych]

I am trying to create a home page.
I created home.md in the content folder (because _index.md does not appear at all) and specified url = '/'.
I also have posts, docs and tutorials folders in content.
Posts have layout 'posts'. Docs and tutorials have layout 'docs'.
On the right side in the "Recent Posts" panel I get not only posts from posts but also from docs and tutorials. How can I fix that?

[razonyang]

That's expected, the recent posts includes all pages of mainSections on the homepage.

[MarkLagodych]

Thank you!