From 3363cc4f1d97a7556373db7bab321f4581d81e66 Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Mon, 3 Sep 2018 15:02:38 +0200
Subject: [PATCH 1/2] shallow-clone the filter, so the timeline filter doesnt
 get written into it later on

---
 src/client.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/client.js b/src/client.js
index 9a538b77d..e2be7ac8d 100644
--- a/src/client.js
+++ b/src/client.js
@@ -2145,7 +2145,7 @@ function(roomId, fromToken, limit, dir, timelineFilter = undefined) {
 
     let filter = null;
     if (this._clientOpts.lazyLoadMembers) {
-        filter = LAZY_LOADING_MESSAGES_FILTER;
+        filter = Object.assign({}, LAZY_LOADING_MESSAGES_FILTER);
     }
     if (timelineFilter) {
         // XXX: it's horrific that /messages' filter parameter doesn't match

From 0d24c18fed83834b3fed2fc8a131739e2f17ce61 Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Tue, 4 Sep 2018 16:51:36 +0200
Subject: [PATCH 2/2] add comment to explain fix

---
 src/client.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/client.js b/src/client.js
index e2be7ac8d..c8e2b8735 100644
--- a/src/client.js
+++ b/src/client.js
@@ -2145,6 +2145,8 @@ function(roomId, fromToken, limit, dir, timelineFilter = undefined) {
 
     let filter = null;
     if (this._clientOpts.lazyLoadMembers) {
+        // create a shallow copy of LAZY_LOADING_MESSAGES_FILTER,
+        // so the timelineFilter doesn't get written into it below
         filter = Object.assign({}, LAZY_LOADING_MESSAGES_FILTER);
     }
     if (timelineFilter) {