From f8911f6fc80ad6edabae8e471c33d3efadf25d60 Mon Sep 17 00:00:00 2001
From: Georg Tomitsch <georg@tomitsch.net>
Date: Sat, 16 May 2026 21:46:44 +0200
Subject: [PATCH] Keep live appends out of history reflow

---
 public/js/ui-display-handler-module.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/public/js/ui-display-handler-module.js b/public/js/ui-display-handler-module.js
index f72ec51..ff623c8 100644
--- a/public/js/ui-display-handler-module.js
+++ b/public/js/ui-display-handler-module.js
@@ -1514,6 +1514,11 @@ class UIDisplayHandlerModule extends BaseModule {
 
         const bounds = await this.getWindowBoundsForTraversal(previousLine, targetLine, latest);
         if (!bounds) return;
+        if (options.mode === 'append-live' && this.getRenderedBlockForLine(targetLine)) {
+            this.activeCenterBlockId = bounds.targetBlockId;
+            this.updateStoryScrollbar();
+            return;
+        }
 
         const currentWindowCoversBounds = bounds.start >= this.historyWindowStartId && bounds.end <= this.historyWindowEndId;
         const exactWindowAlreadyLoaded = bounds.start === this.historyWindowStartId && bounds.end === this.historyWindowEndId;