MDEV-35233: RBR does not work with CSV tables

Handle null bits for record comparison in row events the same way as in
handler::calculate_checksum(), forcing bits that can be undefined to 1.
These bits are the trailing unused bits, as well as the first bit for
tables not using HA_OPTION_PACK_RECORD.

The csv storage engine leaves these bits at 0, while the row-based
replication has them set to 1, which otherwise cause can't find record error.

Reviewed-by: Monty <monty@mariadb.org>
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>

mysql-test/suite/rpl/t/rpl_csv.test

@@ -0,0 +1,16 @@
+--source include/have_csv.inc
+--source include/have_binlog_format_row.inc
+--source include/master-slave.inc
+
+--echo *** MDEV-35233: RBR does not work with CSV tables
+CREATE TABLE t (a INT NOT NULL) ENGINE=CSV;
+INSERT INTO t VALUES (1),(2);
+DELETE FROM t where a=1;
+
+--sync_slave_with_master
+SELECT * FROM t ORDER BY a;
+
+# Cleanup
+--connection master
+DROP TABLE t;
+--source include/rpl_end.inc