for (messages = notmuch_query_search_messages (matched_query);
notmuch_messages_valid (messages);
notmuch_messages_move_to_next (messages))
{
message = notmuch_messages_get (messages);
for (messages = notmuch_query_search_messages (matched_query);
notmuch_messages_valid (messages);
notmuch_messages_move_to_next (messages))
{
message = notmuch_messages_get (messages);