There is a missing cast to string in BuildUpdates which leads to a failure
to call str2ucs and ucs2str for converts on MSSQL.
Ref: https://github.com/go-gitea/gitea/issues/16252
Signed-off-by: Andrew Thornton <art27@cantab.net>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/1957
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-committed-by: Andrew Thornton <art27@cantab.net>