From a9198b1cf638912990295b65212bb519a0a3fb51 Mon Sep 17 00:00:00 2001
From: Pavel Djundik <github@xpaw.me>
Date: Tue, 6 Feb 2018 10:57:16 +0200
Subject: [PATCH] Fix duplicate chat containers and unread markers when
 reconnecting

Fixes #1721
---
 client/js/render.js | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/client/js/render.js b/client/js/render.js
index c85e380e..1530c52a 100644
--- a/client/js/render.js
+++ b/client/js/render.js
@@ -228,19 +228,21 @@ function renderNetworks(data, singleNetwork) {
 		newChannels = channels;
 	}
 
-	chat.append(
-		templates.chat({
-			channels: channels,
-		})
-	);
+	if (newChannels.length > 0) {
+		chat.append(
+			templates.chat({
+				channels: newChannels,
+			})
+		);
 
-	newChannels.forEach((channel) => {
-		renderChannel(channel);
+		newChannels.forEach((channel) => {
+			renderChannel(channel);
 
-		if (channel.type === "channel") {
-			chat.find("#chan-" + channel.id).data("needsNamesRefresh", true);
-		}
-	});
+			if (channel.type === "channel") {
+				chat.find("#chan-" + channel.id).data("needsNamesRefresh", true);
+			}
+		});
+	}
 
 	utils.confirmExit();
 	sorting();