**Feature summary** (what you would like to be able to do and where):
In order to detect when a revision has been revision deleted, there is a hook `ArticleRevisionVisibilitySet`. There is no equivalent hook for log items or files, which can also be revdeleted.
**Use case(s)** (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):
Anytime an extension does something with this content, but also wants to make sure that it appropriately redacts things if the underlying data is hidden.
In particular, I want to know log item revdels for my Extension:Hashtag. I don't specificly have a need for file revdel, but i think we should be consistent here for all types of revdel.
Less clear is if there should also be a hook for hideuser, and archived revisions, files, and logs