We have been battling the activity stream tag wiki stuff for a while now, for example: Tag wiki edits are missing in the activity profile tab
Initially when I designed tag wikis "community user" created the wiki blank and then the end user "revised" the blank wiki. Some people found this confusing so we changed it so the initial revision is a "proper" creation revision however the post is owned by community.
Trouble is this design makes querying for activity very very annoying. We cache an entry in our Posts table for
LastEditorUserId, however have no cached entry for
There was a bug there that used
LastEditorUserId as though it was
I amended the query to properly join into
PostHistory to figure out the proper timeline.
Apologies for the confusion.