Set prompt as default behaviour for unknown CRS

Author: mhugent

src/app/qgisapp.cpp

@@ -321,7 +321,7 @@ static void customSrsValidation_( QgsCoordinateReferenceSystem* srs )
 {
   static QString authid = QString::null;
   QSettings mySettings;
-  QString myDefaultProjectionOption = mySettings.value( "/Projections/defaultBehaviour" ).toString();
+  QString myDefaultProjectionOption = mySettings.value( "/Projections/defaultBehaviour", "prompt" ).toString();
   if ( myDefaultProjectionOption == "prompt" )
   {
     //@note this class is not a descendent of QWidget so we cant pass

src/app/qgsoptions.cpp

@@ -176,11 +176,11 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WFlags fl ) :
   // set the display update threshold
   spinBoxUpdateThreshold->setValue( settings.value( "/Map/updateThreshold" ).toInt() );
   //set the default projection behaviour radio buttongs
-  if ( settings.value( "/Projections/defaultBehaviour" ).toString() == "prompt" )
+  if ( settings.value( "/Projections/defaultBehaviour", "prompt" ).toString() == "prompt" )
   {
     radPromptForProjection->setChecked( true );
   }
-  else if ( settings.value( "/Projections/defaultBehaviour" ).toString() == "useProject" )
+  else if ( settings.value( "/Projections/defaultBehaviour", "prompt" ).toString() == "useProject" )
   {
     radUseProjectProjection->setChecked( true );
   }

src/plugins/georeferencer/qgsopenrasterdialog.cpp

@@ -94,7 +94,7 @@ void QgsOpenRasterDialog::on_tbnSelectRaster_clicked()
 
   // What DOING this code?
   QgsProject* prj = QgsProject::instance();
-  QString projBehaviour = settings.value( "/Projections/defaultBehaviour" ).toString();
+  QString projBehaviour = settings.value( "/Projections/defaultBehaviour", "prompt" ).toString();
   QString projectCRS = prj->readEntry( "SpatialRefSys", "/ProjectCRSProj4String" );
   int projectCrsId = prj->readNumEntry( "SpatialRefSys", "/ProjectCrsId" );