Index: trunk/src/org/openstreetmap/josm/data/osm/visitor/paint/AbstractMapRenderer.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/osm/visitor/paint/AbstractMapRenderer.java	(revision 13988)
+++ trunk/src/org/openstreetmap/josm/data/osm/visitor/paint/AbstractMapRenderer.java	(revision 13989)
@@ -63,5 +63,5 @@
 
     /** Performs slow operations by default. Can be disabled when fast partial rendering is required */
-    protected boolean doSlowOperations;
+    protected boolean doSlowOperations = true;
 
     /**