From f14ae4602e3f2e72bb4612714c9886ef155aeb02 Mon Sep 17 00:00:00 2001
From: "Juergen E. Fischer" <jef@norbit.de>
Date: Thu, 26 Jul 2018 22:01:32 +0200
Subject: [PATCH] add note that duplicated layers use the same data source
 (fixes #19489)

---
 src/app/qgisapp.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/app/qgisapp.cpp b/src/app/qgisapp.cpp
index 05b89875a95..2dc2bee91bf 100644
--- a/src/app/qgisapp.cpp
+++ b/src/app/qgisapp.cpp
@@ -9645,9 +9645,14 @@ void QgisApp::duplicateLayers( const QList<QgsMapLayer *> &lyrList )
       messageBar()->pushMessage( errMsg,
                                  tr( "Cannot copy style to duplicated layer." ),
                                  Qgis::Critical, messageTimeout() );
+    else if ( qobject_cast<QgsVectorLayer *>( dupLayer ) )
+      messageBar()->pushMessage( tr( "Layer duplication complete" ),
+                                 tr( "Note that it's using the same data source." ),
+                                 Qgis::Info, messageTimeout() );
 
     if ( !newSelection )
       newSelection = dupLayer;
+
   }
 
   dupLayer = nullptr;