@@ -79,7 +79,7 @@ class DisplayColumnBox extends React.Component {
destroyOnClose={true}
>
<Transfer
- dataSource={allColumns.map((c, i) => ({...c, key: i}))}
+ dataSource={allColumns.map(c => ({...c, key: c.name}))}
showSearch
filterOption={(inputValue, option) => option.label.toLowerCase().indexOf(inputValue.toLowerCase()) > -1}
listStyle={{