Multiset(INTEGER) migration from 8.4.1.7007 to9.0.0.0478 has error

1.I did the online migration use CMT8.4.1.3079 from CUBRID 8.4.1.7007 to CUBRID 9.0.0.0478.

2.The log is:
2012-10-30 19:38:14.171 [dzltsting]Error:com.cubrid.cubridmigration.core.engine.exception.NormalMigrationException: java.lang.NumberFormatException: For input string: "[4]";Values:[tsr:sds,tm:[4]]

3.If you want to reproduce the issue, please use the create and input sql below to
get a table in CUBRID 8.4.1.7007 ,then,do online migration to CUBRID 9.0.0.0478.

CREATE TABLE "dzltsting"(
"tsr" character varying(1073741823) NOT NULL,
"tm" multiset_of(integer) DEFAULT {3,},
CONSTRAINT pk_dzltsting_tsr PRIMARY KEY("tsr")
);

INSERT INTO dzltsting("tsr","tm") VALUES ('sds',{3.5});