Deleting user account reverted all content authored by user to old revisions

If this is true, this seems like it is a major or critical issue. This seems to have happened to at least one other user from the comment #29 in 🐛 Revision user incorrectly appears as anonymous user when node author is cancelled Needs work . I suspect that there may be other core or contrib modules involved here? Are you able to reproduce this in a clean base install of Drupal?

Marking as a dup of 🐛 Content moderation can wrongly set old revisions as default when they're resaved Needs review . I'm assuming you were using Content Moderation or Workbench Moderation.