From 0cd9932c146601820230aa29bcde804202fbc593 Mon Sep 17 00:00:00 2001
From: JuliaSvinareva <Julia.Svinaryova@onlyoffice.com>
Date: Wed, 1 Sep 2021 17:23:13 +0300
Subject: [PATCH] [SSE] Fix bug 52175

---
 apps/common/main/lib/component/TabBar.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/common/main/lib/component/TabBar.js b/apps/common/main/lib/component/TabBar.js
index 28b23aec2..386c4c6bc 100644
--- a/apps/common/main/lib/component/TabBar.js
+++ b/apps/common/main/lib/component/TabBar.js
@@ -240,7 +240,7 @@ define([
             }, this),
             dragend: $.proxy(function (e) {
                 var event = e.originalEvent;
-                if (event.dataTransfer.dropEffect === 'move') {
+                if (event.dataTransfer.dropEffect === 'move' && !event.dataTransfer.mozUserCancelled) {
                     this.bar.trigger('tab:dragend', true);
                 } else {
                     this.bar.trigger('tab:dragend', false);