Memory leak when "replacing into" on a Aria table with Text field

When doing a "REPLACE INTO table SELECT * FROM..." or "LOAD DATA INFILE ... REPLACE..." on a Aria table with a "text" (or tinytext, mediumtext, longtext) field, replacing data already in the table, used memory increases each time of about the size of data inserted, until server crash with error 1041.
The problem doesn't occours if matching records are deleted before.
Tested also with MyISAM and TokuDB, with which there are no problems.