Lack of interest Edit silently option on merge

[mjda]

When you edit a user's post there is an option to edit silently. However, if you're merging two posts, and edit them there, there is no option for it. In order to not show the "edited by a moderator", I have to merge the posts first, then edit them second, even though there is a way to do it all at once (less the edit silently option).

I'd like to propose adding an option there to edit the post silently as well.