[map themes] avoid writing empty style to layer

qgis · Jan 20, 2018 · 02b24a6 · 02b24a6
1 parent 96d1ea5
commit 02b24a6
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/core/qgsmaplayerstylemanager.cpp b/src/core/qgsmaplayerstylemanager.cpp
@@ -270,6 +270,11 @@ void QgsMapLayerStyle::readFromLayer( QgsMapLayer *layer )
 
 void QgsMapLayerStyle::writeToLayer( QgsMapLayer *layer ) const
 {
+  if ( !isValid() )
+  {
+    return;
+  }
+
   QDomDocument doc( QStringLiteral( "qgis" ) );
   if ( !doc.setContent( mXmlData ) )
   {