From 16278892d8f2135d39f60e77c32a2817cb6413ca Mon Sep 17 00:00:00 2001
From: Kegan Dougal <kegan@matrix.org>
Date: Thu, 5 Nov 2015 13:26:16 +0000
Subject: [PATCH] Modify how detection of the end of pagination is done

Synapse may filter down the events resulting in < 'limit' events being
returned *but it still has more events*. Change the check to see if the
request returned an empty array instead. This may add an extra HTTP hit.
---
 lib/client.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/client.js b/lib/client.js
index 84213fbfe..96632ca63 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -1638,7 +1638,7 @@ MatrixClient.prototype.scrollback = function(room, limit, callback) {
         var matrixEvents = utils.map(res.chunk, _PojoToMatrixEventMapper(self));
         room.addEventsToTimeline(matrixEvents, true);
         room.oldState.paginationToken = res.end;
-        if (res.chunk.length < limit) {
+        if (res.chunk.length === 0) {
             room.oldState.paginationToken = null;
         }
         self.store.storeEvents(room, matrixEvents, res.end, true);