From 942221b59fedcba33e9fdf06f52df49e0b4befe5 Mon Sep 17 00:00:00 2001
From: Joshua Goins <josh@redstrate.com>
Date: Mon, 16 Feb 2026 13:23:59 -0500
Subject: [PATCH] Don't attempt to navigate to a component that doesn't exist

Check for the size of our component list before trying to access it.

BUG: 516107
FIXED-IN: 26.04
---
 src/messagecontent/models/chatbarmessagecontentmodel.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/messagecontent/models/chatbarmessagecontentmodel.cpp b/src/messagecontent/models/chatbarmessagecontentmodel.cpp
index b89b180ea..3a09ac72f 100644
--- a/src/messagecontent/models/chatbarmessagecontentmodel.cpp
+++ b/src/messagecontent/models/chatbarmessagecontentmodel.cpp
@@ -571,6 +571,9 @@ void ChatBarMessageContentModel::handleBlockTransition(bool up)
         setFocusRow(insertRow);
         return;
     }
+    if (atEdge) {
+        return;
+    }
 
     const auto nextRow = currentRow + (up ? -1 : 1);
     const auto nextNotText = m_components[nextRow].type != MessageComponentType::Text;