FileValidationEvent is not drop-in replacement for hook_file_validate

Changes are made on on 11.x (our main development branch) first, and are then back ported as needed according to the Core change policies →

The event is for altering validation constraints. If you are creating a new one, you probably want to implement your own ConstraintValidator plug-in that extends \Drupal\file\Plugin\Validation\Constraint\BaseFileConstraintValidator.

Looking at this change record - https://www.drupal.org/node/3363700 → - it recommends replacing hook_file_validate with FileValidationEvent. Is the change record wrong in this case? Because, as explained at https://www.drupal.org/project/clamav/issues/3503176#comment-15967597 🐛 File upload stopped working after updating to 2.1.0 Active , the module adapted the recommended event replacement

Also, shouldn't this event still provide the correct file size when uploading, as if you check my post, the uploaded file data is not correct when using FileValidationEvent?

This may also be happening because the images are downsized if too big, and then two different sizes are in question - the true size and the resized one. Related: https://www.drupal.org/project/drupal/issues/3292350#comment-16093652 🐛 file_validate_image_resolution does not update file size after resizing Needs work