hide issues from org private repos w/o team assignment (#4034)

models/notification.go

@@ -119,7 +119,17 @@ func createOrUpdateIssueNotifications(e Engine, issue *Issue, notificationAuthor
 		}
 	}
 
+	issue.loadRepo(e)
+
 	for _, watch := range watches {
+		issue.Repo.Units = nil
+		if issue.IsPull && !issue.Repo.CheckUnitUser(watch.UserID, false, UnitTypePullRequests) {
+			continue
+		}
+		if !issue.IsPull && !issue.Repo.CheckUnitUser(watch.UserID, false, UnitTypeIssues) {
+			continue
+		}
+
 		if err := notifyUser(watch.UserID); err != nil {
 			return err
 		}