Relevant to this issue.
There are two scenarios regarding this that I can think of when clustering.
1. Two separate albums with the same name by different artists
2. One album which two different artists worked on
Currently Picard only accounts for scenario 2. However, we can't limit clustering to having the same album AND artist as in scenario 1, as this would compete with scenario 2.
One option could be a toggle, where you can choose in the settings how you would like Picard to cluster same album names by different artists.
We could also have a pop-up window alerting the user that this problem has occurred, and having them manually cluster those songs.
Neither of these are perfect solutions. What solution do any of you have in mind?