Provide standard CRUD pre/post hooks for Compendium entity events.
Add a hook call when a compendium is deleted. Currently modules like Compendium Folders keep a cached folder structure which needs to be cleared if a compendium is deleted, but at the moment there's no way of knowing when this occurs.
The user can be presented with a corrupted compendium view if the cache is used for a newly created compendium of the same name.
This would be great, but it's also not a critical priority.