QQmlMetaType: Don't duplicate notify signals for extended types

We have to add the methods first, so that the properties can be
associated with their proper notification signals once we add them. If
we add the properties first, the "missing" notification signals are
synthesized.

Fixes: QTBUG-101155
Change-Id: I1aacbf33a24f7a98d05dece77c804bd7cba8a041
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit 57614680f760068c1db39888beba46944f409ff0)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/tests/auto/qml/qqmllanguage/data/foreignExtended.qml b/tests/auto/qml/qqmllanguage/data/foreignExtended.qml
index 4863e0d567..b01af6d229 100644
--- a/tests/auto/qml/qqmllanguage/data/foreignExtended.qml
+++ b/tests/auto/qml/qqmllanguage/data/foreignExtended.qml
@@ -5,12 +5,17 @@ QtObject {
     property Foreign foreign: Foreign {
         objectName: "foreign"
     }
-    property Extended extended: Extended {}
+    property Extended extended: Extended {
+        objectName: "extended"
+        property int changeCount: 0
+        onExtensionChanged: ++changeCount
+    }
     property ForeignExtended foreignExtended: ForeignExtended {
         objectName: "foreignExtended"
     }
 
     property int extendedBase: extended.base
+    property int extendedChangeCount: extended.changeCount
 
     property int extendedInvokable: extended.invokable()
     property int extendedSlot: extended.slot()