From 9b0ff2c6e9d1b6b7b257c19a1421f4458613dd77 Mon Sep 17 00:00:00 2001
From: myronliu347 <myronliu347@gmail.com>
Date: Wed, 19 Jun 2019 15:05:49 +0800
Subject: [PATCH] fix(Tree):  can`t pos of undefined

---
 src/tree/view/tree.jsx | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/tree/view/tree.jsx b/src/tree/view/tree.jsx
index f33a2d7ab5..c0eea919ad 100644
--- a/src/tree/view/tree.jsx
+++ b/src/tree/view/tree.jsx
@@ -488,12 +488,15 @@ export default class Tree extends Component {
     }
 
     getCheckedKeys(props, willReceiveProps) {
-        let checkedKeys =
-            'checkedKeys' in props
-                ? props.checkedKeys
-                : willReceiveProps
-                ? []
-                : props.defaultCheckedKeys;
+        let checkedKeys = props.defaultCheckedKeys;
+
+        if ('checkedKeys' in props) {
+            checkedKeys = props.checkedKeys;
+        } else if (willReceiveProps) {
+            checkedKeys = [];
+        }
+
+        checkedKeys = checkedKeys.filter(key => !!this._k2n[key]);
 
         const { checkStrictly } = this.props;
         if (checkStrictly) {