From bd700efd6ffdfe299297a6b45ecc9cf97c09412f Mon Sep 17 00:00:00 2001
From: Daniel <845765@qq.com>
Date: Sun, 28 Sep 2025 09:39:04 +0800
Subject: [PATCH] :bug: Doc tree drag function is abnormal
 https://github.com/siyuan-note/siyuan/issues/15972

Signed-off-by: Daniel <845765@qq.com>
---
 kernel/model/push_reload.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/kernel/model/push_reload.go b/kernel/model/push_reload.go
index e4cd526aa..75b108379 100644
--- a/kernel/model/push_reload.go
+++ b/kernel/model/push_reload.go
@@ -38,10 +38,18 @@ import (
 )
 
 func refreshDocInfo(tree *parse.Tree) {
+	if nil == tree {
+		return
+	}
+
 	refreshDocInfoWithSize(tree, filesys.TreeSize(tree))
 }
 
 func refreshDocInfoWithSize(tree *parse.Tree, size uint64) {
+	if nil == tree {
+		return
+	}
+
 	refreshDocInfo0(tree, size)
 	refreshParentDocInfo(tree)
 }