Old check is jquery is(':visible') no longer works because we use css property visibility hidden (for animation to work properly), and not display none
Fix previous commit. As "force reconnect" buttons have all the same id
on DOM, on the previous commit we were only disallowing the first button
with that id on DOM -- "userdup" -- to be closed by a click on editor.
Casually the tests were using the same error to simulate a "force
reconnect", so even the tests were not getting the issue.
If a "force reconnect" message is displayed to the user, it means the
only way to go back to a healthy state is to reload the pad. So we
cannot hide this kind of message, like what is done with other modals
(eg: "settings").
