Index: /trunk/src/org/openstreetmap/josm/data/osm/Node.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/data/osm/Node.java	(revision 5934)
+++ /trunk/src/org/openstreetmap/josm/data/osm/Node.java	(revision 5935)
@@ -113,6 +113,8 @@
             this.lon = Double.NaN;
             invalidateEastNorthCache();
-        }
-        setIncomplete(isVisible() && !isLatLonKnown());
+            if (isVisible()) {
+                setIncomplete(true);
+            }
+        }
     }