From 6c98aa76667752b70121f220b3cfc524e118eeb1 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Wed, 11 Oct 2017 18:14:12 +0100
Subject: [PATCH] Fix IsEmpty to return the right thing

---
 .../matrix-org/dendrite/syncapi/types/types.go         | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/github.com/matrix-org/dendrite/syncapi/types/types.go b/src/github.com/matrix-org/dendrite/syncapi/types/types.go
index 2f91c4563..d0b1c38ab 100644
--- a/src/github.com/matrix-org/dendrite/syncapi/types/types.go
+++ b/src/github.com/matrix-org/dendrite/syncapi/types/types.go
@@ -77,11 +77,11 @@ func NewResponse(pos StreamPosition) *Response {
 // IsEmpty returns true if the response is empty, i.e. used to decided whether
 // to return the response immediately to the client or to wait for more data.
 func (r *Response) IsEmpty() bool {
-	return len(r.Rooms.Join) > 0 ||
-		len(r.Rooms.Invite) > 0 ||
-		len(r.Rooms.Leave) > 0 ||
-		len(r.AccountData.Events) > 0 ||
-		len(r.Presence.Events) > 0
+	return len(r.Rooms.Join) == 0 &&
+		len(r.Rooms.Invite) == 0 &&
+		len(r.Rooms.Leave) == 0 &&
+		len(r.AccountData.Events) == 0 &&
+		len(r.Presence.Events) == 0
 }
 
 // JoinResponse represents a /sync response for a room which is under the 'join' key.