Index: src/org/openstreetmap/josm/data/validation/tests/TagChecker.java
===================================================================
--- src/org/openstreetmap/josm/data/validation/tests/TagChecker.java	(revision 14703)
+++ src/org/openstreetmap/josm/data/validation/tests/TagChecker.java	(working copy)
@@ -407,7 +407,7 @@
      */
     public static boolean isTagInPresets(String key, String value) {
         final Set<String> values = getPresetValues(key);
-        return values != null && (values.isEmpty() || values.contains(value));
+        return values != null && values.contains(value);
     }
 
     /**