Github Team doesn't work as a group

[josh-bartz]

I have a github team that I'm trying to automatically request reviews by all team members, for all team members.

Ex: team-1 consists of [dev1, dev2, dev3]. If dev2 submits a PR, I want dev1 and dev3 to be requested automatically. However, only the following seems to work:

reviewers:
  groups:
    group-1
      - dev1
      - dev2
      - dev3

  per_author:
    group-1
      - team:team-1

I would have expected this to work, too:

reviewers:
  groups:
    group-1
      - team:team-1

  per_author:
    group-1
      - team:team-1

Setting enable_group_assignment: true doesn't work, either. Is there a way to do this that I'm missing?