addremove: correctly handle intermediate symlinks This fixes problems mentioned in issue660 comments (unrelated to original issue) where directory was renamed, and symlink was added instead. In such situation addremove wasn't able to correctly detect that old files no longer here, but tried to add symlink (and failed due collision with old files).

% directory moved and symlinked
adding foo/a
% now addremove should remove old files
adding bar/a
adding foo
removing foo/a