symfony: 3.3.7 killed DotEnv :(

3.3.6 working fine.

Composer update to 3.3.7, cleared all caches…

config.yml like:

snc_redis:
    session:
        client: session
        prefix: "session"
        ttl: 604800
    clients:
        default:
            type: predis
            alias: default
            dsn: "redis://%env(redis_server1)%/%env(redis_db)%"
            logging: "%kernel.debug%"
        cache:
            type: predis
            alias: cache
            dsn: "redis://%env(redis_server1)%/%env(redis_db)%"
            options:
                connection_timeout: 10
                read_write_timeout: 30

turns into

note the:

[tcp://env_redis_server_b4db6b8d7bb2020da1133e356d30a3e5:6379]

that is NOT a server name 😦