I think this is a "release" package. When you add a software channel we look for packages in the channel which contains a "product".
These packages were added to the package states automatically. This happens to correctly display results from the subscription-matcher.

We take "provides" of other release packages into account, but we had some bugs there in the past which should be fixed.
But a fix only pevent these things in future. If a state contains already a wrong package it will not be fixed automatically.