It's expected that a pseudo-release is linked to an official release that has an identical set of recordings. If the recordings differ, something is wrong.  Sometimes the recordings need to be merged because users do not understand the abstract concept of shared recordings.  Other times, they need to be different recordings due to Style/Documentation mandates, in which case the release-release link needs to be removed/corrected.

Sometimes a "CD-only" pseudo-release is linked to the "CD+DVD" official release, so missing mediums should probably be ignored by this report.