How to bypass cacher as updateVM

My goal is to be able to update fedora templates from updates and updates-testing repositories.
This can’t be done when cacher is set as netVM for a template, as described here

Until it would be hopefully resolved, I figured out that maybe there is a workaround for this without changing cacher as netVM.

Is there a way specific repo in a .repo file to bypass netVM and use for example directly sys-whonix as netVM to check for updates?

For those communicating via email, this is EDIT

How to bypass cacher as updateVM, not netVM.