mesh-grants: grants_accounts reads the account consumers' differences in shadow, where no condition is raised (issue 774, ADR 0561 §6, §9)

modules/mesh-grants/internal/grants/accounts.go

@@ -138,6 +138,11 @@ func (p *Part) Accounts(user string) (any, error) {
 		if json.Unmarshal(raw, &res) == nil && res.Accounts != nil {
 			answer["last_pass"] = res.Accounts
 		}
+		// And the durable consumers the accounts need, as the last pass found them: missing and differing ones are read
+		// here in shadow too, where no condition is raised (ADR 0561 §6, §9).
+		if res.Consumers != nil {
+			answer["consumers"] = res.Consumers
+		}
 	}
 	return answer, nil
 }