Schema is never in sync with Maria DB 10.2.8

[Seikyo]

Hello,
it seems the schema:update is broken using MariaDB 10.2.8, i am currently unable to validate the database schema since a few days, every time I run doctrine:schema:update --force i get a Database schema updated successfully message but if I chain with a doctrine:schema:update --dump-sql there are still changes (it loops).

I could reproduce this on two symfony projects using:

doctrine/orm                         v2.5.11            Object-Relational-Mapper for PHP
symfony/symfony                      v3.3.9             The Symfony PHP framework

And

doctrine/orm                         v2.5.10 Object-Relational-Mapper for PHP
symfony/symfony                      v2.8.27 The Symfony PHP framework

Both using

doctrine/annotations                 v1.4.0  Docblock Annotations Parser
doctrine/cache                       v1.6.2  Caching library offering an object-oriented API for many cache backends
doctrine/dbal                        v2.5.13 Database Abstraction Layer
doctrine/doctrine-bundle             1.6.8   Symfony DoctrineBundle
doctrine/doctrine-cache-bundle       1.3.0   Symfony Bundle for Doctrine Cache
doctrine/lexer                       v1.0.1  Base library for a lexer that can be used in Top-Down, Recursive Descent Parsers.

And here are some outputs of what happen with a single user entity:

18:12 $ sf doctrine:schema:update --dump-sql --force
ALTER TABLE user CHANGE salt salt VARCHAR(255) DEFAULT NULL, CHANGE last_login last_login DATETIME DEFAULT NULL, CHANGE confirmation_token confirmation_token VARCHAR(180) DEFAULT NULL, CHANGE password_requested_at password_requested_at DATETIME DEFAULT NULL, CHANGE firstname firstname VARCHAR(32) DEFAULT NULL, CHANGE lastname lastname VARCHAR(32) DEFAULT NULL;

Updating database schema...
Database schema updated successfully! "1" query was executed
✔ ~/bboutarel/symfony [clean|●1✚ 1…1] 
18:12 $ sf doctrine:schema:update --dump-sql --force
ALTER TABLE user CHANGE salt salt VARCHAR(255) DEFAULT NULL, CHANGE last_login last_login DATETIME DEFAULT NULL, CHANGE confirmation_token confirmation_token VARCHAR(180) DEFAULT NULL, CHANGE password_requested_at password_requested_at DATETIME DEFAULT NULL, CHANGE firstname firstname VARCHAR(32) DEFAULT NULL, CHANGE lastname lastname VARCHAR(32) DEFAULT NULL;

Updating database schema...
Database schema updated successfully! "1" query was executed

Using MariaDB 10.2.8

18:14 $ mysql -v
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 30
Server version: 10.2.8-MariaDB Homebrew

[Seikyo]

issue is a doctrine/dbal level and being handled, i am closing this
doctrine/dbal#2825