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.
% initial svn import
Adding t/a
Committed revision 1.
% update svn repository
A t2/a
Checked out revision 1.
A b
Sending a
Adding b
Transmitting file data ..
Committed revision 2.
% convert to hg once
assuming destination trunk-hg
initializing destination trunk-hg repository
scanning source...
sorting...
converting...
1 init
0 changea
% update svn repository again
Sending a
Sending b
Transmitting file data ..
Committed revision 3.
% test incremental conversion
assuming destination trunk-hg
destination trunk-hg is a Mercurial repository
scanning source...
sorting...
converting...
0 changeb