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src/views/manager/projectinfo/tree.vue

@@ -189,6 +189,7 @@
                 highlight-current
                 node-key="id"
                 v-show="isSearch"
+                default-expand-all
               >
                   <span
                     class="custom-tree-node "

src/views/manager/wbsinfo/edit.vue

@@ -105,6 +105,7 @@
                 highlight-current
                 node-key="id"
                 :load="searchtreeLoad"
+                default-expand-all
               >
                 <span
                   class="custom-tree-node"