Comment 2 for bug 788722

Fully reduced testcase, does not need RQG or additional server parameters:

CREATE TABLE IF NOT EXISTS local_1_1 ( f1 VARCHAR ( 32 ) NOT NULL , f2 VARCHAR ( 128 ) NOT NULL , f3 BLOB NOT NULL , f4 TEXT, f5 BLOB ( 1024 ) , PRIMARY KEY ( f1 ) , KEY ( f1 , f2 ) ) ENGINE=HEAP ROW_FORMAT=DYNAMIC KEY_BLOCK_SIZE = 2048;
INSERT IGNORE INTO local_1_1 VALUES ( REPEAT( 'egqeqfxwaejpqixuvvtentruyqadxiybjdfqjspfbyjdjczrrwjnagkzsoagatqookhsgtrvvbxacppljfzaseidqggxvuirm' , 5 ) , NULL , NULL , NULL , REPEAT( 'hegqeqfxwaejpqixuvvtentruyqadxiy' , 1 ) ) , ( 'you' , NULL , 0 , REPEAT("X", 2048) , 0 );
INSERT IGNORE INTO local_1_1 SELECT * FROM local_1_1;