inbox: drop references ASAP for search and msgmap

We can't leave them lingering in the parent process at
all due to the risk of corruption with multiple processes.

diff --git a/lib/PublicInbox/Inbox.pm b/lib/PublicInbox/Inbox.pm
index d050dc86b0ad677c289e8b171bd2bcf191aa3878..27218de74c22a9082dba5d10942186fe29947752 100644 (file)
--- a/lib/PublicInbox/Inbox.pm
+++ b/lib/PublicInbox/Inbox.pm
@@ -86,7 +86,7 @@ sub base_url {
 sub nntp_usable {
        my ($self) = @_;
        my $ret = $self->mm && $self->search;
-       weaken_all();
+       $self->{mm} = $self->{search} = undef;
        $ret;
 }