From 1bc8ec5e0f4db7d9c737e869ebd4fd13b56eeb5a Mon Sep 17 00:00:00 2001
From: jljsj33 <liangjun.jiang@alipay.com>
Date: Wed, 10 Apr 2019 16:32:17 +0800
Subject: [PATCH] recover openAnimation

---
 components/menu/index.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/menu/index.tsx b/components/menu/index.tsx
index c80aaffdd1..d6430d36de 100644
--- a/components/menu/index.tsx
+++ b/components/menu/index.tsx
@@ -305,7 +305,7 @@ class InternalMenu extends React.Component<InternalMenuProps, MenuState> {
       menuProps.onClick = this.handleClick;
       menuProps.openTransitionName = mounted ? menuOpenAnimation : '';
     } else {
-      menuProps.openAnimation = mounted ? menuOpenAnimation : '';
+      menuProps.openAnimation = mounted && menuOpenAnimation;
     }
 
     // https://github.com/ant-design/ant-design/issues/8587