Use the default option as in catmandu #333

metafix/src/main/java/org/metafacture/metafix/FixMethod.java

@@ -520,6 +520,7 @@ public void apply(final Metafix metafix, final Record record, final List<String>
             final String defaultValue = map.get(Maps.DEFAULT_MAP_KEY); // TODO: Catmandu uses 'default'
             final boolean delete = getBoolean(options, "delete");
             final boolean printUnknown = getBoolean(options, "print_unknown");
+            final String defaultOption = options.get("default");
 
             final Consumer<Consumer<String>> consumer = c -> record.transform(params.get(0), oldValue -> {
                 final String newValue = map.get(oldValue);
@@ -530,8 +531,11 @@ public void apply(final Metafix metafix, final Record record, final List<String>
                     if (c != null) {
                         c.accept(oldValue);
                     }
-
+                    elsif (defaultOption != null){
+                        return defaultOption;
+                    }
                     return defaultValue != null ? defaultValue : delete ? null : oldValue;
+
                 }
             });