Connect Engine: INSERT FROM SELECT (or CREATE TABLE AS SELECT) memory leak

Scenario:

Bash console (it's mandatory to execute from the bash):

1) mysql -h 127.0.0.1 --port=3306 -u user -ppassword db -e 'DROP TABLE IF EXISTS c1;'
2) mysql -h 127.0.0.1 --port=3306 -u user -ppassword db -e 'CREATE TABLE c1 ENGINE=CONNECT TABLE_TYPE=MYSQL DBNAME='\''information_schema'\'' OPTION_LIST='\''host=127.0.0.1,port=33235,user=user,password=password'\'' `tabname`='\''tables'\'''
3) mysql -h 127.0.0.1 --port=3306 -u user -ppassword db -e 'CREATE TABLE t1 AS SELECT * FROM c1'

This scenario leads to spending an additional 500 MB (equal to value of "connect_work_size" variable) of virtual memory for each repetition. This memory is not released until you restart the mysql process. Remote database name and a table - can be any.