Obtained from: https://invent.kde.org/plasma/plasma-workspace/-/commit/f6dad3c07bd10ebe332a180aa912c9870856155a

--- src/com.canonical.dbusmenu.xml.orig	2023-04-15 13:00:03 UTC
+++ src/com.canonical.dbusmenu.xml
@@ -316,8 +316,8 @@ -->
 
 <!-- Signals -->
 		<signal name="ItemsPropertiesUpdated">
-			<annotation name="com.trolltech.QtDBus.QtTypeName.In0" value="DBusMenuItemList"/>
-			<annotation name="com.trolltech.QtDBus.QtTypeName.In1" value="DBusMenuItemKeysList"/>
+			<annotation name="com.trolltech.QtDBus.QtTypeName.Out0" value="DBusMenuItemList"/>
+			<annotation name="com.trolltech.QtDBus.QtTypeName.Out1" value="DBusMenuItemKeysList"/>
 			<dox:d>
 			Triggered when there are lots of property updates across many items
 			so they all get grouped into a single dbus message.  The format is