Steps to reproduce the issue

With Joomla! 4.0.3 and a PHP configuration including
memory_limit=-1
try to upload an image using the Media Manager (Content -> Media in the Backend).

Expected result

Since according to the PHP dokumentation "memory_limit=-1" means "there is no limit", the upload should work.

Actual result

Upload is rejected with error "This file is too large to upload."

System information (as much as possible)

Joomla! 4.0.3 Stable [ Furaha ] 12-September-2021 10:39 GMT
PHP-Version 7.4.24
Apache Webserver