…amkhadiri1989)This PR was submitted for the 6.0 branch but it was merged into the 5.4 branch instead.Discussion----------[Form] Update create_form_type_extension.rstHello,I think the condition `image_url is not null` is not enough as if we create a FileType form field without the `image_property` it causes an error. Adding `image_url is defined` is necessary  because the variable `image_url` is only defined and passed to the view when `image_property` is already defined.<!--If your pull request fixes a BUG, use the oldest maintained branch that containsthe bug (seehttps://symfony.com/releases for the list of maintained branches).If your pull request documents a NEW FEATURE, use the same Symfony branch wherethe feature was introduced (and `6.x` for features of unreleased versions).-->Commits-------85470c5 Update create_form_type_extension.rst