From c168a92f187943a401f6c4095b5abde44478d0c9 Mon Sep 17 00:00:00 2001
From: chaofeis <408067385@qq.com>
Date: Thu, 9 Nov 2017 13:46:24 +0800
Subject: [PATCH] docs: add missing key prop for controlled tag demo (#1)
 (#8147)

---
 components/tag/demo/control.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/tag/demo/control.md b/components/tag/demo/control.md
index 4107b2360a..345ee20b66 100644
--- a/components/tag/demo/control.md
+++ b/components/tag/demo/control.md
@@ -66,7 +66,7 @@ class EditableTagGroup extends React.Component {
               {isLongTag ? `${tag.slice(0, 20)}...` : tag}
             </Tag>
           );
-          return isLongTag ? <Tooltip title={tag}>{tagElem}</Tooltip> : tagElem;
+          return isLongTag ? <Tooltip title={tag} key={tag}>{tagElem}</Tooltip> : tagElem;
         })}
         {inputVisible && (
           <Input