1) The importer remembers them and skips them. It does not import the changes from LJ (to avoid overwriting cases where the changes were on DW).
2) Yes.
3) Just add any new filters. Again, this is to avoid overwriting changes -- the system doesn't know which version is the 'correct' version, so it doesn't even try.
no subject
2) Yes.
3) Just add any new filters. Again, this is to avoid overwriting changes -- the system doesn't know which version is the 'correct' version, so it doesn't even try.