XML errors while copying dependents during a redefinition to an interval partitioning scheme

Question

I am partitioning an existing table. I used the following process:

1. Checks

   DBMS_REDEFINITION.CAN_REDEF_TABLE(...);
   

   • Successful

2. Create duplicate table

    CREATE TABLE "USER"."MYTABLE_ONLINE" 
    ( "SERIAL_ID" NUMBER(15,0), 
      "CONTEXTID" NUMBER(15,0) NOT NULL ENABLE, 
      "MYTIME_TIME" DATE DEFAULT SYSDATE )
    PARTITION BY RANGE ("INSERTED_TIME") INTERVAL (NUMTODSINTERVAL(1,'DAY'))
    (PARTITION "p1_1"  VALUES LESS THAN (TO_DATE('01-jan-2012','DD-MON-YYYY' )))
   

   • Successful

3. Copy dependencies

   DBMS_REDEFINITION.COPY_TABLE_DEPENDENTS(v_name,
     'MYTABLE', 'MYTABLE_ONLINE', 
     copy_indexes=>dbms_redefinition.cons_orig_params,
     copy_triggers=>TRUE,
     copy_constraints=>TRUE,
     copy_privileges=>TRUE,
     ignore_errors=>FALSE, num_errors=>error_count,
     copy_statistics=>false);
   

And I get the following error.

ORA-06502: PL/SQL: numeric or value error
ORA-31606: XML context 27 does not match any previously allocated context
ORA-06512: at "SYS.DBMS_METADATA", line 1475
ORA-06512: at "SYS.DBMS_METADATA", line 7481
ORA-06512: at "SYS.DBMS_REDEFINITION", line 803
ORA-06502: PL/SQL: numeric or value error
ORA-31606: XML context 27 does not match any previously allocated context
ORA-06512: at "SYS.DBMS_REDEFINITION", line 1869
ORA-06512: at line 6
06502. 00000 -  "PL/SQL: numeric or value error%s"
*Cause:    
*Action:

How can I fix this?