The changes in today’s release should ensure all versions in your library show up on the Overview tab, and also that the Overview tab and Discography tab show up as originally intended.
A discography is meant to be a comprehensive overview of the artist’s career. It’s going to show you each album the artist released, not every version of the albums in your library, like the Overview tab does.
We’re considering possible changes in this area, but they would require a broader overhaul of how different versions of albums are grouped together and prioritized.