fix: prevent remote updates from scrolling local viewport

test/service/scroll_service_test.dart

@@ -1,5 +1,7 @@
+import 'package:appflowy_editor/appflowy_editor.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+
 import '../new/infra/testable_editor.dart';
 
 void main() async {
@@ -28,5 +30,53 @@ void main() async {
       expect(itemFinder, findsOneWidget);
       await editor.dispose();
     });
+
+    testWidgets('remote document updates do not request local auto-scroll',
+        (tester) async {
+      final editor = tester.editor;
+      addTearDown(() async {
+        await tester.pumpWidget(const SizedBox.shrink());
+        editor.editorState.dispose();
+      });
+
+      for (var i = 0; i < 3; i++) {
+        editor.addParagraph(initialText: 'paragraph $i');
+      }
+      await editor.startTesting();
+      await editor.updateSelection(
+        Selection.collapsed(
+          Position(path: [0]),
+        ),
+      );
+
+      final localSelection = editor.selection;
+      final autoScroller = editor.editorState.autoScroller;
+      expect(autoScroller, isNotNull);
+      if (autoScroller == null) {
+        return;
+      }
+      autoScroller.stopAutoScroll();
+      expect(autoScroller.lastOffset, isNull);
+
+      final remotelyEditedNode = editor.nodeAtPath([1]);
+      expect(remotelyEditedNode, isNotNull);
+      if (remotelyEditedNode == null) {
+        return;
+      }
+      final transaction = editor.editorState.transaction
+        ..updateNode(
+          remotelyEditedNode,
+          {
+            ParagraphBlockKeys.delta:
+                (Delta()..insert('updated remotely')).toJson(),
+          },
+        );
+
+      await editor.editorState.apply(transaction, isRemote: true);
+      await tester.pump();
+
+      expect(editor.selection, localSelection);
+      expect(autoScroller.lastOffset, isNull);
+    });
   });
 }