Anyone having a massive count returned for the first listed item from this SQLITE db query on the PMS database, is welcome to try out the alpha build
select count(metadata_item_id),metadata_item_id from metadata_relations group by metadata_item_id order by count(metadata_item_id) desc limit 20
This lists the count of extras in descending order and any with hundreds of thousands in the count in the first column displayed in the query result should try out the fix