fix 文档拆分修改

src/views/documentTool/documentSplit/DocumentSplitDetail.vue

@@ -10,6 +10,7 @@
                     :show-icon="true"
                     :tree-data="treeData"
                     :selected-keys="selectedKeys"
+                    :expanded-keys.sync="expandedKeys"
                     :replaceFields="{key: 'id'}">
               <template #title="record">
                 <div class="tree-operate-node"
@@ -282,7 +283,8 @@ export default {
       disabledMixinsCreate: true,
       tableSlotField: ['item_content', 'interpretation_articles'],
       uploadData: {},
-      isBackTitle: true
+      isBackTitle: true,
+      expandedKeys: []
     }
   },
   computed: {
@@ -378,6 +380,7 @@ export default {
       getClauseTreeData(params).then(res => {
         if (res.success) {
           this.treeData = res.result || []
+          this.expandedKeys = this.treeData.length > 0 ? this.treeData[0].id : []
         }
       }).finally(() => {
         this.treeLoading = false