Index: src/org/openstreetmap/josm/io/OsmReader.java
===================================================================
--- src/org/openstreetmap/josm/io/OsmReader.java	(revision 3405)
+++ src/org/openstreetmap/josm/io/OsmReader.java	(working copy)
@@ -378,7 +378,7 @@
                 // do nothing
             } else if (action.equals("delete")) {
                 current.setDeleted(true);
-                current.setModified(true);
+                current.setModified(current.isVisible());
             } else if (action.equals("modify")) {
                 current.setModified(true);
             }