[CMT8.4.1.1205] When migrate int to numeric, it will pop error.

1 there is table in mysql:
CREATE TABLE `1int` (
`i` int(11) DEFAULT NULL,
`iu` int(10) unsigned DEFAULT NULL,
`mediumint1` mediumint(9) DEFAULT NULL,
`tinyint1` tinyint(4) DEFAULT NULL,
`tinyint unsigned1` tinyint(3) unsigned DEFAULT NULL,
`mediumintunsigned1` mediumint(8) unsigned DEFAULT NULL,
`smallint1` smallint(6) DEFAULT NULL,
`smallintunsigned` smallint(5) unsigned DEFAULT NULL,
`tinyintn1` tinyint(1) DEFAULT NULL,
`a` smallint(6) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1

2 Do offline migration, and chang i from int to numeric(11,0)

Actual result:
It will pop error, such as attachment.