Performance regression occurs with update statements after f11504a

After commit f11504a, MariaDB performance appears to be degraded when executing the update statement:

UPDATE comments SET post_id=post_id+1 WHERE id>1000;

We tested it using mysqlslap with the following test statement:

 ./mysqlslap --concurrency=1 --iterations=1 --create-schema=test --query="$mariaDB_inst" -uroot -S $(pwd)/bin/mysql.sock --number-of-queries=10000

The result of the test statement is as follows:

Before f11504a:
Average number of seconds to run all queries: 540.658 seconds
Minimum number of seconds to run all queries: 540.658 seconds
Maximum number of seconds to run all queries: 540.658 seconds
Number of clients running queries: 1
Average number of queries per client: 10000

After f11504a:
Average number of seconds to run all queries: 574.658 seconds
Minimum number of seconds to run all queries: 574.658 seconds
Maximum number of seconds to run all queries: 574.658 seconds
Number of clients running queries: 1
Average number of queries per client: 10000

you can pre-populated data by init.sql and insert.sql