[peteforde]

Not sure what to tell you... it's been corroborated by several people in this thread and apparently, FB considers this a feature.

I wish I had a dime for every HN karma point, but when I suddenly had full access to my friends' FB account there's little room for other explanations. I was her: open and shut case.

https://imgur.com/a/AgTVgZK

Note the "Not you?" bit. This bug has a UI.

[pasbesoin]

I was just saying I hadn't experienced it myself nor tested it.

For the rest, I agree. This behavior is unacceptable, on the part of FB.