Just letting the tech types know I noticed this anomaly.
Went to follow up on a profile from June 15th when I asked a question. My concern on that date was that several sections of the profile were copy & paste without any citation (confirmed by the answers on G2G).
Now those sections have citations, but there is no record of their addition in the Changes tabs.
I also noticed something "fishy" the other day (in regards to other profiles), but after a while the data seemed to be correct. Sorry, don't remember the date; it was in regards to changes with no matching contributions.