modifyType fails in MySQL 5.6

There seems to be a problem that is affecting the modifyType changesets in MySQL 5.6. These changesets worked fine in MySQL 5.5.


The column was varchar(255) and this changeset worked fine with MySQL 5.5. 

I see new error messages were added to MySQL 5.6

which wasn’t there in:

So some changes were made. These should be fixed or documented in the modifyType documentation: