Index: trunk/test/unit/org/openstreetmap/josm/gui/io/UploadDialogTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/gui/io/UploadDialogTest.java	(revision 10103)
+++ trunk/test/unit/org/openstreetmap/josm/gui/io/UploadDialogTest.java	(revision 10105)
@@ -104,4 +104,6 @@
         assertFalse(UploadDialog.UploadAction.isUploadCommentTooShort("geometric corrections"));
         assertFalse(UploadDialog.UploadAction.isUploadCommentTooShort("几何校正"));
+        // test with unassigned unicode characters ==> no unicode block
+        assertTrue(UploadDialog.UploadAction.isUploadCommentTooShort("\u0860"));
     }
 }