message: indexer-agent: Treat deployments assigned to node=null as removed
diff: @@ -126,7 +126,7 @@ export class Indexer {
  return result.data.indexingStatuses
  .filter((status: { subgraphDeployment: string; node: string }) => {
  - return status.node !== 'removed'
  + return status.node && status.node !== 'removed'
  })
  .map((status: { subgraphDeployment: string; node: string }) => {
  return new SubgraphDeploymentID(status.subgraphDeployment)
  