On https://symfony.com/doc/current/controller/upload_file.html in the 4th code block it says: ```php // updates the 'brochure' property to store the PDF file name // instead of its contents $product->setBrochure($fileName); ``` But the "second part" is not documented: If the file is already present, you also have to do this before creating the form: ```php $product->setBrochure(new File($product->getFileName())); ``` So the general question is: Wouldn't it be better to recommend a [Data Transformer](https://symfony.com/doc/current/form/data_transformers.html) instead of manually transforming back and forth in the controller? This would (would it?) also solve this problem with EasyAdmin: https://github.com/EasyCorp/EasyAdminBundle/issues/2356