I updated clients page on 12/20 and it was working fine. Client called to complain 2 days later that page wasn't right. When I checked the revisions a mystery edit showed by an unknown editor.
See image of revision:
https://www.diigo.com/item/p/qedqeppzbsdberoaezbcdeqdqp
All other revisions show me or client as the editor.
All other users are subscribers. Checked the database to confirm this.
Thanks for any insight.