Hi,

in a service definition with:

services:
    _defaults:
        autoconfigure: true

    locator.abc:
        class: Symfony\Component\DependencyInjection\ServiceLocator
        tags: ['container.service_locator'] # <- add this automatically
        arguments:
            -   ...

I would have assumed, that the (required) tag container.service_locator is autoconfigured as the class is a ServiceLocator and probably needs the tag. Is there a specific reason, why this isn't configured automatically?