From 16980735185be3e4ac0dcf6d771e50feb537453b Mon Sep 17 00:00:00 2001
From: chanx <1243304602@qq.com>
Date: Fri, 21 Aug 2026 10:11:17 +0800
Subject: [PATCH] fix(web): preserve entire subtree of title-matching nodes in
 TreeSelect filter (#18561)

---
 web/src/components/tree-select.tsx | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/web/src/components/tree-select.tsx b/web/src/components/tree-select.tsx
index 6dc770e4ce..4e90c0f861 100644
--- a/web/src/components/tree-select.tsx
+++ b/web/src/components/tree-select.tsx
@@ -145,11 +145,18 @@ export const TreeSelect = forwardRef<HTMLButtonElement, TreeSelectProps>(
           const titleMatch = node.title
             .toLowerCase()
             .includes(term.toLowerCase());
+          // A matching parent keeps its entire subtree so its children stay
+          // visible; otherwise only branches containing matching descendants
+          // are kept.
+          if (titleMatch) {
+            acc.push(node);
+            return acc;
+          }
           const filteredChildren = node.children
             ? filterTree(node.children, term)
             : undefined;
-          if (titleMatch || filteredChildren?.length) {
-            acc.push({ ...node, children: filteredChildren ?? node.children });
+          if (filteredChildren?.length) {
+            acc.push({ ...node, children: filteredChildren });
           }
           return acc;
         }, []);