Index: trunk/src/org/openstreetmap/josm/io/ChangesetQuery.java
===================================================================
--- trunk/src/org/openstreetmap/josm/io/ChangesetQuery.java	(revision 4901)
+++ trunk/src/org/openstreetmap/josm/io/ChangesetQuery.java	(revision 4902)
@@ -77,5 +77,5 @@
         CheckParameterUtil.ensureParameterNotNull(username, "username");
         this.userName = username;
-        this.uid = 0;
+        this.uid = null;
         return this;
     }