This PR was merged into the 1.3 branch.

Discussion
----------

| Q               | A
| --------------- | -----
| Branch?         | 1.3
| Bug fix?        | yes
| New feature?    | no
| BC breaks?      | not sure (it backward compatible on default fixtures configuration)
| Deprecations?   | not sure (deprecation messages was added, but not appear on default fixtures configuration)
| Related tickets | fixes #10307, partially #7346
| License         | MIT

So, in BC in mind, with this PR it now will work like this:

- **If you have default (empty) configuration, as was before**:

    ```yaml
    sylius_fixtures:
        # ...
        fixtures:
            locale: ~
    ```
  Then, base locale **will be added** to configuration.

- *But if you provided a list of locales*:

    ```yaml
    sylius_fixtures:
        suites:
            my_custom_suite_to_add_to_existing_database:
                listeners:
                    orm_purger: false
                fixtures:
                    locale:
                        options:
                            locales:
                                - "de_DE"
    ```
   Then, base locale **will NOT be added** to configuration.

Deprecation message was added to avoid usage base locale at all in future. To suppress that message on default configuration, `"%locale%"` was passed directly to the `locales` option at `src/Sylius/Bundle/CoreBundle/Resources/config/app/fixtures.yml`.

# TODO

- [ ] Define Sylius version where base locale will be removed OR remove deprecation message if base locale should be kept by default (when fixture defined like `locale: ~`) - I'm not 100% sure about this so want to discuss this first.


Commits
-------

93f098e Fixed: LocaleFixtureTest as it not valid since #7346
15c0cb7 Avoided: Adding base locale usage to list of fixtures (fixes #10307)

* 1.3:
  Avoided: Adding base locale usage to list of fixtures (fixes #10307)
  Fixed: LocaleFixtureTest as it not valid since #7346

* 1.4:
  Avoided: Adding base locale usage to list of fixtures (fixes #10307)
  Fixed: LocaleFixtureTest as it not valid since #7346

…eability

[Locale] Removed enable/disable functionality