watch: flush changes to inbox before updating IMAPTracker

Data needs to hit inboxes, first.  Otherwise it's possible to
skip messages in case git-fast-import is killed before it sees
"done\n".  Now, -watch will just waste a little bandwidth in
re-downloading a seen message if it's interrupted immediately
before updating IMAPTracker.

diff --git a/lib/PublicInbox/WatchMaildir.pm b/lib/PublicInbox/WatchMaildir.pm
index 4ae400f7905fdb203fd3fa69507634e243b9c5c5..78aec8a25d5f4b6cfd3103917ecc93aed6ba2a7b 100644 (file)
--- a/lib/PublicInbox/WatchMaildir.pm
+++ b/lib/PublicInbox/WatchMaildir.pm
@@ -918,8 +918,8 @@ sub nntp_fetch_all ($$$) {
                }
                $last_art = $art;
        }
                }
                $last_art = $art;
        }

-       $itrk->update_last(0, $last_art) if defined $last_art;

        _done_for_now($self);
        _done_for_now($self);

+       $itrk->update_last(0, $last_art) if defined $last_art;

        $err;
 }
 
        $err;
 }