Regression with MySQL delimiter in Flyway 3.2

[fromi]

What version of Flyway are you using?

3.2

What database are you using (type & version)?

MySQL

What operating system are you using?

Windows 7 & 10 (local development). Probably not relevant.

What did you do?

(Please include the content causing the issue, any relevant configuration settings, and the command you ran)
A script with a delimiter:

delimiter #

create procedure init_fact_references()
  begin
    start transaction;
      alter table facts add reference int;
      update facts set reference = (position + 1) where publication_date is not null;
      update facts set reference = 0 where publication_date is null;
    commit;
  end #

delimiter ;

What did you expect to see?

The script works fine using Flyway 3.1. I expect it to keep working when I upgrade my Flyway version :)

What did you see instead?

Migration V1.1.9__facts_reference.sql failed
--------------------------------------------
SQL State  : 42000
Error Code : 1064
Message    : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DELIMITER' at line 13
Location   : db/migration/V1.1/V1.1.9__facts_reference.sql (C:\Users\Romain Fromi\IdeaProjects\ejust\src\main\resources\db\migration\V1.1\V1.1.9__facts_reference.sql)
Line       : 7
Statement  : CREATE PROCEDURE init_fact_references()
  BEGIN
    START TRANSACTION;
    ALTER TABLE facts ADD reference INT;
    UPDATE facts
    SET reference = (position + 1)
    WHERE publication_date IS NOT NULL;
    UPDATE facts
    SET reference = 0
    WHERE publication_date IS NULL;
    COMMIT;
  END #
DELIMITER 

    at org.flywaydb.core.internal.dbsupport.SqlScript.execute(SqlScript.java:117) ~[flyway-core-3.2.1.jar:na]
[...]
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DELIMITER' at line 13

[axelfontaine]

Thanks. Can you check whether this still occurs with Flyway 4.0?

[fromi]

We were able to reproduce the problem using Flyway 4.0, 3.2.1 and 3.2.