--- /Metaphone.java	2023-07-05 02:30:42.082155447 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/language/Metaphone.java	2023-07-05 02:30:42.086155448 +0200
@@ -284,7 +284,7 @@
                     }
                     // substitute numeral 0 for TH (resembles theta after all)
                     if (regionMatch(local,n,"TH")) {
-                        code.append('0');
+code .append ( inwd , maxCodeLen , maxCodeLen )  ;
                     } else {
                         code.append('T');
                     }
