Ensure the designer dialog is deleted immediately

elpaso · elpaso · commit 20f1acb41e0a · 2019-05-28T10:51:26.000+02:00
Before other signals can crash the application. Fixes #29821
diff --git a/src/app/layout/qgslayoutdesignerdialog.cpp b/src/app/layout/qgslayoutdesignerdialog.cpp
@@ -966,7 +966,11 @@ void QgsLayoutDesignerDialog::setMasterLayout( QgsMasterLayoutInterface *layout
 
   QObject *obj = dynamic_cast< QObject * >( mMasterLayout );
   if ( obj )
-    connect( obj, &QObject::destroyed, this, &QgsLayoutDesignerDialog::close );
+    connect( obj, &QObject::destroyed, [ = ]
+  {
+    this->close();
+    QgsApplication::sendPostedEvents( nullptr, QEvent::DeferredDelete );
+  } );
 
   setTitle( mMasterLayout->name() );
 
