Replication aborts with ER_KEY_NOT_FOUND on table with key on BLOB and without PK

--source include/have_binlog_format_row.inc

--source include/master-slave.inc

CREATE TABLE t1 (b BLOB, i INT, KEY(b(8))) ENGINE=RocksDB;

INSERT INTO t1 VALUES (REPEAT('a',9),1);

UPDATE t1 SET i = 2;

--sync_slave_with_master

# Cleanup

--connection master

DROP TABLE t1;

--source include/rpl_end.inc

2018-07-16 19:11:54 140503152559872 [ERROR] mysqld: Can't find record in 't1'

2018-07-16 19:11:54 140503152559872 [ERROR] Slave SQL: Could not execute Update_rows_v1 event on table test.t1; Can't find record in 't1', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log master-bin.000001, end_log_pos 923, Gtid 0-1-3, Internal MariaDB error code: 1032

2018-07-16 19:11:54 140503152559872 [Warning] Slave: Can't find record in 't1' Error_code: 1032

2018-07-16 19:11:54 140503152559872 [ERROR] Error running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread with "SLAVE START". We stopped at log 'master-bin.000001' position 726