From b4b0c0aa8916dadae9125b292d99d005411cfadf Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Sat, 1 Oct 2016 08:57:31 +0000
Subject: [PATCH] Merged r15853 (#23751).

git-svn-id: http://svn.redmine.org/redmine/branches/3.3-stable@15854 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 public/javascripts/application.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/javascripts/application.js b/public/javascripts/application.js
index eedeae08b..087d3de59 100644
--- a/public/javascripts/application.js
+++ b/public/javascripts/application.js
@@ -380,7 +380,7 @@ function displayTabsButtons() {
       }
     });
     var bw = $(el).parents('div.tabs-buttons').outerWidth(true);
-    if ((tabsWidth < el.width() - bw) && (lis.first().is(':visible'))) {
+    if ((tabsWidth < el.width() - bw) && (lis.length === 0 || lis.first().is(':visible'))) {
       el.find('div.tabs-buttons').hide();
     } else {
       el.find('div.tabs-buttons').show().children('button.tab-left').toggleClass('disabled', numHidden == 0);
-- 
2.39.5