Root level tags are not transferred to the resulting config

[servernoj]

I have custom/documentation section of serverless.yml defined as follows:

version: ...
title: ...
description: ...
tags:
  - name: public
    description: API endpoints not requiring authentication
  - name: user-level
  - name: ...
models:
  - ...

with ... being properly replaced with meaningful values. After compilation, I don't see the tags section in the resulting openapi.yml file on the root level.

Note: function-level tags definition are properly transferred.