Corrected drawing of zone outlines.

pcbnew/pcb_painter.cpp

@@ -756,11 +756,15 @@ void PCB_PAINTER::draw( const ZONE_CONTAINER* aZone )
     for( int i = 0; i < outline->GetCornersCount(); ++i )
     {
         corners.push_back( VECTOR2D( outline->GetPos( i ) ) );
+
+        if( outline->IsEndContour( i ) )
+        {
+            // The last point for closing the polyline
+            corners.push_back( corners[0] );
+            m_gal->DrawPolyline( corners );
+            corners.clear();
+        }
     }
-    // The last point for closing the polyline
-    corners.push_back( VECTOR2D( outline->GetPos( 0 ) ) );
-    m_gal->DrawPolyline( corners );
-    corners.clear();
 
     // Draw the filling
     if( displayMode != PCB_RENDER_SETTINGS::DZ_HIDE_FILLED )