From 81421c2c8e8957fd2095a5b12868975a8e425067 Mon Sep 17 00:00:00 2001
From: Thomas Hartmann <thomas.hartmann@qt.io>
Date: Thu, 21 Dec 2023 15:28:21 +0100
Subject: [PATCH] QmlDesigner: Do not warn about attached properties

Change-Id: I2a59f5133d1542766bcd82551c998d5cf4d38d56
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
---
 .../qmldesigner/designercore/model/texttomodelmerger.cpp       | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/plugins/qmldesigner/designercore/model/texttomodelmerger.cpp b/src/plugins/qmldesigner/designercore/model/texttomodelmerger.cpp
index 676011bdc57..889f8471978 100644
--- a/src/plugins/qmldesigner/designercore/model/texttomodelmerger.cpp
+++ b/src/plugins/qmldesigner/designercore/model/texttomodelmerger.cpp
@@ -606,8 +606,9 @@ public:
                                && astValue.trimmed().right(1) == u"\"";
         const QString cleanedValue = fixEscapedUnicodeChar(deEscape(stripQuotes(astValue.trimmed())));
         if (!propertyMetaInfo.isValid()) {
+            const bool isAttached = !propertyName.isEmpty() && propertyName[0].isUpper();
             // Only list elements might have unknown properties.
-            if (!node.metaInfo().isQtQuickListElement()) {
+            if (!node.metaInfo().isQtQuickListElement() && !isAttached) {
                 qCInfo(texttomodelMergerDebug)
                     << Q_FUNC_INFO << "Unknown property"
                     << propertyPrefix + QLatin1Char('.') + toString(propertyId) << "on line"