I thought that it is part of mmdv2 migration.... But just in case, opening this one.
probably 25% of my modules is list of components to be excluded :)
For example, https://src.fedoraproject.org/modules/zola/blob/rolling/f/zola.yaml
Commit 689d949a fixes this issue
This issue has been migrated to Fedora Forge: https://forge.fedoraproject.org/koji/mbs/issues/1307
Please continue any further discussion there.