"Cannot read property 'indexOf' of undefined" with set `defaultExpandParent={false}` & not setting `defaultExpandedKeys`

Tree.js?67c8:383 Uncaught TypeError: Cannot read property 'indexOf' of undefined Cannot read property 'indexOf' of undefined with no setting defaultExpandedKeys & set defaultExpandParent={false}

Here is my usage:

          <DirectoryTree
            showIcon
            defaultExpandParent={false}
            selectedKeys={this.state.selectedKeys}
            onSelect={this.onTreeSelect}
          >
            {this.renderNewNodes2(this.state.treeData)}
          </DirectoryTree>

The error occurs when the TreeNode is clicked.

But if I set defaultExpandedKeys={[]} by default, there is no error.

          <DirectoryTree
            showIcon
            defaultExpandParent={false}
            selectedKeys={this.state.selectedKeys}
            onSelect={this.onTreeSelect}
            defaultExpandedKeys={[]}
          >
            {this.renderNewNodes2(this.state.treeData)}
          </DirectoryTree>

However, this usage is not be declared on the docs. Plz fix it.

Reproduce the reported DirectoryTree case with defaultExpandParent={false} and no defaultExpandedKeys, then inspect Tree.js around line 383 to trace the undefined value. Confirm the click no longer throws when defaultExpandedKeys is omitted, and verify the documented usage covers this case.