Index: /trunk/src/org/openstreetmap/josm/io/OsmApi.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/io/OsmApi.java	(revision 6965)
+++ /trunk/src/org/openstreetmap/josm/io/OsmApi.java	(revision 6966)
@@ -672,5 +672,5 @@
                     // Unauthorized, see #3887.
                     //
-                    BufferedReader in = new BufferedReader(new InputStreamReader(i));
+                    BufferedReader in = new BufferedReader(new InputStreamReader(i, Utils.UTF_8));
                     String s;
                     try {