From c8f134370bf1bbbf78c630f60d32fde09a51cdd0 Mon Sep 17 00:00:00 2001
From: Leo Franchi <leo@zulip.com>
Date: Mon, 3 Feb 2014 10:34:52 -0500
Subject: [PATCH] Provide a valid local id when a fresh database with no
 messages is used

(imported from commit dafff9d4800a643693b57e92b7a02171c466333b)
---
 static/js/echo.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/static/js/echo.js b/static/js/echo.js
index c3490bac3a..522a32b1ca 100644
--- a/static/js/echo.js
+++ b/static/js/echo.js
@@ -118,7 +118,7 @@ function get_next_local_id() {
     if (typeof all_msg_list !== 'undefined' && all_msg_list.last() !== undefined) {
         latest = all_msg_list.last().id;
     }
-    return truncate_precision(latest + local_id_increment);
+    return Math.max(0, truncate_precision(latest + local_id_increment));
 }
 
 function insert_local_message(message_request, local_id) {