Hi guys,
in the validate method of Sylius\Bundle\CoreBundle\Validator\Constraints\AllowedImageMimeTypesValidator a value of Symfony\Component\HttpFoundation\File\UploadedFile has been required only to check its mime type.

But in my opinion the validator should check for Symfony\Component\HttpFoundation\File\File instead of UploadedFile.

The getMimeType() is defined on the Symfony\Component\HttpFoundation\File\File class.

Moreover doing so will force to have Product images only set by form upload but there could be different flows setting File to Product objects (and not UploadedFile). For example in our SyliusAkeneoPlugin we have the ImageValueHandler which sets a File on the Product and not an UploadedFile because the image is not uploaded from the admin panel form but it's imported from Akeneo.