There's a race issue with just treating it as a next button: it's
not in the same place as a next button. Sometimes in the g-i-s
code we actually get ahead of ourselves and click early, which
isn't really a problem when the buttons are all in the same
place, but if we click "Start Setup" in the middle of transition
to the Privacy screen - as in
https://openqa.fedoraproject.org/tests/745034#step/_graphical_wait_login/4
- the click effectively gets lost. So let's make it its own tag
and have the initial assert look for it too. That way we won't
match on it again in the main loop over "@nexts".
Signed-off-by: Adam Williamson <awilliam@redhat.com>
fba4a82587