…oiceType` (HeahDude)This PR was merged into the 2.7 branch.Discussion----------[WIP] [2.7] [Form] fix `empty_data` option in expanded `ChoiceType`| Q             | A| ------------- | ---| Bug fix?      | yes| New feature?  | no| BC breaks?    | no| Deprecations? | no| Tests pass?   | yes| Fixed tickets |#17791| License       | MIT| Doc PR        | -It might happen because in `Form::submit()` the handling of `empty_data` [line 597](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Form/Form.php#L597) comes after each child of a compound field has been submitted [line 549](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Form/Form.php#L549).So when `ChoiceType` is `expanded`, `compound` option is defaulted to `true` and it passes its empty submitted data to its children before handling its own `empty_data` option.This PR uses the listener already added in `ChoiceType` only when `expanded` is true to handle `empty_data` at `PRE_SUBMIT` [line 539](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Form/Form.php#L539).- [ ] Fix FQCN in tests for 2.8- [ ] Remove `choices_as_values` in tests for 3.0Commits-------d479adf [Form] fix `empty_data` option in expanded `ChoiceType`

This PR was merged into the 3.0 branch.Discussion----------[Form] fixed ChoiceTypeTest after#17822| Q             | A| ------------- | ---| Branch?       | 3.0| Bug fix?      | no| New feature?  | no| BC breaks?    | no| Deprecations? | no| Tests pass?   | yes| Fixed tickets | ~| License       | MIT| Doc PR        | ~Commits-------777c193 [Form] fixed ChoiceTypeTest after#17822

* 3.0:  [Form] fixed ChoiceTypeTest after#17822

* 3.1:  [Form] fixed ChoiceTypeTest after#17822  [DoctrineBridge] fixed DoctrineChoiceLoaderTest by removing deprecated factory  [ci] Upgrade phpunit wrapper deps  [FrameworkBundle] Fix fixtures  [HttpKernel] Inline ValidateRequestListener logic into HttpKernel  fixed HttpKernel dependencies after#18688

…e (HeahDude)This PR was merged into the 2.7 branch.Discussion----------[Form] Fixed empty data on expanded ChoiceType and FileType| Q             | A| ------------- | ---| Branch?       | 2.7| Bug fix?      | yes| New feature?  | no| BC breaks?    | no| Deprecations? | no| Tests pass?   | yes| Fixed tickets |#25896| License       | MIT| Doc PR        | ~Alternative of#25924.I don't think we have to do this by adding overhead in master and getting it properly fixed in 2 years.This is bug I've introduced while fixing another bug#17822. Which then has been replicated in#20418 and#24993.I propose instead to clean up the code for all LTS, since this is a wrong behaviour that has never been documented, and most of all unreliable.The `empty_data` can by anything in the view format as long as the reverse view transformation supports it. Even an object derived from the data class could be invokable.I think we should remain consistent withhttps://github.com/symfony/symfony/blob/2.7/src/Symfony/Component/Form/Form.php#L615.Commits-------9722c06 [Form] Fixed empty data on expanded ChoiceType and FileType