From f04ca9ff3dc1af71a66c2d1d75364938e898ed10 Mon Sep 17 00:00:00 2001
From: Dean Lee <deanlee3@gmail.com>
Date: Fri, 28 Oct 2022 03:58:25 +0800
Subject: [PATCH] Cabana: fix dbc opened twice on startup (#26265)

---
 tools/cabana/messageswidget.cc | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tools/cabana/messageswidget.cc b/tools/cabana/messageswidget.cc
index 9b831ad18c..4975061cc5 100644
--- a/tools/cabana/messageswidget.cc
+++ b/tools/cabana/messageswidget.cc
@@ -85,10 +85,12 @@ MessagesWidget::MessagesWidget(QWidget *parent) : QWidget(parent) {
 }
 
 void MessagesWidget::loadDBCFromName(const QString &name) {
-  dbc()->open(name);
-  dbc_combo->setCurrentText(name);
-  // refresh model
-  model->updateState();
+  if (name != dbc()->name()) {
+    dbc()->open(name);
+    dbc_combo->setCurrentText(name);
+    // re-sort model to refresh column 'Name'
+    model->updateState(true);
+  }
 }
 
 void MessagesWidget::loadDBCFromPaste() {