MW-285 MTR test case for broken foreign key constraints

mysql-test/suite/galera/r/MW-285.result

+CREATE TABLE parent1 ( id INT PRIMARY KEY, KEY (id) ) ENGINE=InnoDB;
+CREATE TABLE parent2 ( id INT PRIMARY KEY, KEY (id) ) ENGINE=InnoDB;
+CREATE TABLE child (
+id INT PRIMARY KEY,
+parent1_id INT,
+parent2_id INT,
+FOREIGN KEY (parent1_id) REFERENCES parent1(id),
+FOREIGN KEY (parent1_id) REFERENCES parent2(id)
+) ENGINE=InnoDB;
+INSERT INTO parent1 VALUES (1);
+INSERT INTO parent2 VALUES (1);
+INSERT INTO child VALUES (1,1,1);
+INSERT INTO child VALUES (2,1,1);
+SET foreign_key_checks=OFF;
+DROP TABLE parent1;
+UPDATE child SET parent1_id=2 WHERE id=1;
+DROP TABLE child;
+DROP TABLE parent2;
+SET foreign_key_checks=ON;

mysql-test/suite/galera/t/MW-285.test

+#
+# Broken FK constraints cause assertions
+#
+
+--source include/galera_cluster.inc
+--source include/have_innodb.inc
+
+CREATE TABLE parent1 ( id INT PRIMARY KEY, KEY (id) ) ENGINE=InnoDB;
+CREATE TABLE parent2 ( id INT PRIMARY KEY, KEY (id) ) ENGINE=InnoDB;
+
+CREATE TABLE child (
+       id INT PRIMARY KEY,
+       parent1_id INT,
+       parent2_id INT,
+       FOREIGN KEY (parent1_id) REFERENCES parent1(id),
+       FOREIGN KEY (parent1_id) REFERENCES parent2(id)
+) ENGINE=InnoDB;
+
+INSERT INTO parent1 VALUES (1);
+INSERT INTO parent2 VALUES (1);
+INSERT INTO child VALUES (1,1,1);
+INSERT INTO child VALUES (2,1,1);
+
+SET foreign_key_checks=OFF;
+DROP TABLE parent1;
+
+UPDATE child SET parent1_id=2 WHERE id=1;
+
+DROP TABLE child;
+DROP TABLE parent2;
+SET foreign_key_checks=ON;