[ogr] Re-compute capabilities when a subset string is changed

Author: elpaso

src/providers/ogr/qgsogrprovider.cpp

@@ -573,12 +573,15 @@ bool QgsOgrProvider::setSubsetString( const QString &theSQL, bool updateFeatureC
   }
 
   // check the validity of the layer
-  QgsDebugMsg( "checking validity" );
+  QgsDebugMsgLevel( "checking validity", 4 );
   loadFields();
-  QgsDebugMsg( "Done checking validity" );
+  QgsDebugMsgLevel( "Done checking validity", 4 );
 
   invalidateCachedExtent( false );
 
+  // Changing the filter may change capabilities
+  computeCapabilities();
+
   emit dataChanged();
 
   return true;