mq: fix regression in 6fd953d5faea
It caused qrefresh; qrefresh -X addedfile to leave the file as normal in dirstate.
It should be marked added on the second pass.
import doctest
import mercurial.changelog
# test doctest from changelog
doctest.testmod(mercurial.changelog)
import mercurial.httprepo
doctest.testmod(mercurial.httprepo)