memory leak, high cpu usage

I am using 9.3.0.4999 on win 7 64 bit with mariadb 10.1.8


I am using a very small sample database from a book http://www.kitebird.com/mysql-book/. When I start heidisql it uses around 30MB but the moment I load small sql file with following content, heidisql start using around 15% cpu constantlty even if it is minimized. Also memory uses keeps climbing, within last 2 minutes it has been increased from 30MB to 570MB and still increasing.
Yesterday when I noticed that system was slow and checked process explorer I found out that heisidsql is using 3.7GB memory and it was still increasing.

DELETE FROM absence;
INSERT INTO absence VALUES (3,'2008-09-03');
INSERT INTO absence VALUES (5,'2008-09-03');
INSERT INTO absence VALUES (10,'2008-09-06');
INSERT INTO absence VALUES (10,'2008-09-09');
INSERT INTO absence VALUES (17,'2008-09-07');
INSERT INTO absence VALUES (20,'2008-09-07');

I installed mysql workbench to see if it is something to do with mariadb but workbench worked fine.

It looks like some bug in HeidiSQL.

Thanks