ignore_malformed option of mcsimport does not take effect if csv file starts with malformed row

[root@cps mcsimport]# cat nulls.csv

||NULL

NULL||NULL

NULL|NULL|NULL

|NULL|

,,

./mcsimport a ff nulls.csv  -ignore_malformed_csv -err_log

Error: Column size of input file is less than the column size of the target table

[root@cps mcsimport]# cat nulls.csv.1542121955911.err

error_type, column_nr, parsed_raw_row_values

[root@cps mcsimport]#

[root@cps mcsimport]# cat nulls.csv

,,

||NULL

NULL||NULL

NULL|NULL|NULL

|NULL|

,,

[root@cps mcsimport]# ./mcsimport a ff nulls.csv  -ignore_malformed_csv -err_log

Execution time: 0.836845s

Rows inserted: 2

Truncation count: 0

Saturated count: 0

Invalid count: 0

Ignored malformed csv count: 4

[root@cps mcsimport]# mcsmysql -u root -p1

Welcome to the MariaDB monitor.  Commands end with ; or \g.

Your MariaDB connection id is 48696

Server version: 10.3.10-MariaDB-log Columnstore 1.2.1-1

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> select * from a.ff ;

+------+------+------+

| a    | b    | c    |

+------+------+------+

| NULL | NULL | NULL |

| NULL | NULL | NULL |

+------+------+------+

2 rows in set, 1 warning (0.298 sec)

[root@cps mcsimport]# cat nulls.csv.1542122024432.err

error_type, column_nr, parsed_raw_row_values

MALFORMED_CSV_LINE, -1, ||NULL

MALFORMED_CSV_LINE, -1, NULL||NULL

MALFORMED_CSV_LINE, -1, NULL|NULL|NULL

MALFORMED_CSV_LINE, -1, |NULL|