my (undef, $last) = each_recent_blob($ctx, sub {
my ($path, $commit, $ts, $u, $subj) = @_;
$state->{first} ||= $commit;
my $mime = do_cat_mail($ibx, $path) or return 0;
my (undef, $last) = each_recent_blob($ctx, sub {
my ($path, $commit, $ts, $u, $subj) = @_;
$state->{first} ||= $commit;
my $mime = do_cat_mail($ibx, $path) or return 0;