[FIX] mail: Discuss: apply default filters

Before this rev., the default filters were ignored in Discuss. The
SearchView was instantiated and correctly retrieved the default
filters. However, a first manual 'do_search' needs to be done by
the client action for the search view to provide the domain, and
for Discuss to correctly filter the messages.

Steps to reproduce the issue:
  - In Discuss (e.g. in Inbox), add to Favorites a given search,
    and tick 'Use by default'
  - Leave Discuss, and then go back: the default filter correctly
    appears in the search view, but the messages aren't filtered.

0 files changed, 0 insertions, 0 deletions