Search code for releases creates a very basic medium object based on external search data. This is missing both position and release_id, which we expect to always exist in MediumT flow types. The pull request #2978 is being merged now unsyncs the Flow type "MediumT" for its "position" and "release_id" properties. It is unclear whether these should be nullable or if a new type should be used instead since these are "null" only for search results. Beyond Flow types, the property mediums_loaded in Perl is misleading too. A larger refactoring might be needed to sanitize the code.