tactician.middleware.command_handler prevents persisting cart

[adrianmarte]

I could not persist the cart in DB without disabling

                - tactician.middleware.command_handler

in the file config/packages/league_tactician.yaml on a default Sylius installation.
Versions:

"require": {
        "php": "^7.2",
        "nelmio/cors-bundle": "^1.5",
        "sylius/shop-api-plugin": "^1.0@beta",
        "sylius/sylius": "~1.5.0@rc",
        "symfony/dotenv": "^4.2",
        "symfony/flex": "^1.2"
    },

Is this an issue of the SyliusShopApiClient?