From 58f72678aed036ad1bfa2bbd31a877daffeb6b58 Mon Sep 17 00:00:00 2001
From: Vanessa <lly219@gmail.com>
Date: Tue, 23 Sep 2025 23:17:52 +0800
Subject: [PATCH] :art: https://github.com/siyuan-note/siyuan/issues/12060

---
 app/src/protyle/wysiwyg/list.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/src/protyle/wysiwyg/list.ts b/app/src/protyle/wysiwyg/list.ts
index c7645a19c..3ff5beb8e 100644
--- a/app/src/protyle/wysiwyg/list.ts
+++ b/app/src/protyle/wysiwyg/list.ts
@@ -3,7 +3,7 @@ import {transaction, turnsIntoOneTransaction, updateTransaction} from "./transac
 import {genEmptyBlock} from "../../block/util";
 import * as dayjs from "dayjs";
 import {Constants} from "../../constants";
-import {moveToPrevious} from "./remove";
+import {moveToPrevious, removeBlock} from "./remove";
 import {hasClosestByClassName} from "../util/hasClosest";
 import {setFold} from "../../menus/protyle";
 
@@ -219,6 +219,10 @@ export const listIndent = (protyle: IProtyle, liItemElements: Element[], range:
 
 export const breakList = (protyle: IProtyle, blockElement: Element, range: Range) => {
     const listItemElement = blockElement.parentElement;
+    if (!listItemElement.previousElementSibling) {
+        removeBlock(protyle, blockElement, range, "Backspace");
+        return;
+    }
     const listItemId = listItemElement.getAttribute("data-node-id");
     const doOperations: IOperation[] = [];
     const undoOperations: IOperation[] = [];