How to not exclude packages requried by parent manifests?

[p5]

I am basing my image off of the Bootc Base Images (https://gitlab.com/fedora/bootc/base-images).
I want to target the tier-1 manifest for these images, however this contains an explicit exclude on packages like perl. Perl is required for the desktop-specific packages, so the build of these desktops fail since the perl package is explicitly excluded.

How can I say "Exclude this package for here downstream, and let upstream do what they want". Where downstream is manifests added by that file, and upstream is the parent manifests which reference the one with the exclude.

You can see an image failing to build due to this error here.

[p5]

This is no longer required through the introduction of tier-x images