5.0 migration fix

src/main/resources/com/unicenta/pos/scripts/MySQL-upgrade_master.sql

@@ -50,6 +50,9 @@ COMMIT;
 UPDATE resources SET content = $FILE{/com/unicenta/pos/templates/script.Totaldiscount.txt} WHERE name = 'script.Totaldiscount';
 COMMIT;
 
+UPDATE resources SET content = $FILE{/com/unicenta/pos/templates/script.multibuy.txt} WHERE name = 'script.multibuy';
+COMMIT;
+
 -- ROLES
 DELETE FROM roles WHERE id = '0';
 INSERT INTO roles(id, name, permissions) VALUES('0', 'Administrator role', $FILE{/com/unicenta/pos/templates/Role.Administrator.xml} );