After much testing with a number of oversighters, we have been unable to reproduce the bug (even after I reproduced the post that you made, using my own screen (and redacting the token)).  At the moment, I'm suspecting either a cacheing error, or some confusion about timing and the need to refresh the page to see some updates. I'll ask Keegan to see if he specifically can reproduce, tomorrow, but 3 other oversighters had success. 
(Just FYI, the hide/delete/suppress links are all duplicated on the History page, so even posts that include crazy divs that partially cover the dropdown menu, can be moderated )