[4.x]: The upscaleImages config settings appears to be ignored

[angrybrad]

What happened?

Steps to reproduce

1. On a fresh Craft install, setup a local filesystem and volume.
2. Upload an image. For example, 500x500 in dimensions.
3. Create a transform that is 1000px wide.
4. Set upscaleImages in config/general.php to false.
5. Load that transform in a template:

    {% set image = craft.assets.id(4).one() %}

    <img src="{{ image.url('myTransform') }}" width="{{ image.width('myTransform') }}" height="{{ image.height('myTransform') }}">

Expected behavior

The transform should be 500px side.

Actual behavior

The generated transform is 1000px wide.

Craft CMS version

4.0.4

PHP version

8.0

Operating system and version

macOS

Database type and version

MariaDB 10.3.34

Image driver and version

Imagick 3.6.0

Installed plugins and versions

None.