Split from #2677 (part 3). Waits for the teams issue. Done: an issue can name up to two teams (e.g. data science + design for a visualization); the pull that closes it asks a reviewer from each named team, and the pull page shows both verdicts. Test: an issue naming two teams queues one review per team on its pull.
Split from #2677 (part 3). Waits for the teams issue. Done: an issue can name up to two teams (e.g. data science + design for a visualization); the pull that closes it asks a reviewer from each named team, and the pull page shows both verdicts. Test: an issue naming two teams queues one review per team on its pull.