qpsmtpd-v0.84 seems to ignore size_threshold

Using qpsmtpd latest:

    root@hive1:# git-describe
    v0.84-36-g0b0e4e9

In lib/Qpsmtpd/Transaction.pm I see...

     $self->body_spool if ( $self->{_body_size} >= $self->size_threshold() );

I have config/size_threshold set to 10000.

Starting qpsmtpd, the log shows:

    14886 in config(size_threshold)
    14886 config(size_threshold): hook returned (0, )
    14886 trying to get config for size_threshold
    14886 setting _config_cache for size_threshold to [10000] from get_qmail_config and returning it
    14886 size_threshold set to 10000

Dumping the transaction hash for a small message I see...

    "_body_array" => undef,
    "_body_current_pos" => 9,
    "_body_file" => bless( \*Symbol::GEN6, 'IO::File' ),
    "_body_size" => 213,
    "_body_start" => 188,
    "_filename" => "/root/tmp/1287166697:13580:0",

_body_size is 213 which is smaller than 10000.

_body_array should be set and _body_file/_filename should be
unset, with the message held in memory.

The body_filename() is never called in any plugins I'm using.

Someone let me know how to turn off spooling for small messages.

Thanks.

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