a8n: Only return CampaignPlan.Changesets that have a a final diff
Created by: mrnugget
As discussed on today's sync call with @felixfbecker @eseliger @tsenart this changes the campaignPlan.changesets
field in the GraphQL API to implicitly filter out the underlying CampaignJob
s that have finished execution and came up with a diff, i.e. those that we would create on the code hosts as pull requests.