question

when the 'treeData' was changed,but the tree has not change and it's just display blank。

expected

the 'treeData' change,the view change.

<DraggableTree
 class="catalog-tree"
 :data="treeData"
 crossTree
 :draggable="false"
 ref="draggabletree"
 >
...
</DraggableTree>