Memory leak in Bro Intel framework

The policy/frameworks/intel/seen bro scripts have a memory leak. On my moderately busy Bro installation I am leaking about a gig of memory a day per worker process with the Intel framework enabled. I can replicate by adding the following to the local.bro default script and then running through a small PCAP with primarily dns, dhcp and syslog traffic.

{{
@load policy/frameworks/intel/seen

redef Intel::read_files += {
"/usr/local/bro/spool/domain_suspicious.txt",
};
}}

The intel file is in the following format, here's a few sample lines. It is generated automatically by CIF:

{{
#fields indicator indicator_type meta.source meta.desc meta.url meta.cif_impact meta.cif_severity meta.cif_confidence
mete-tools.biz Intel:OMAIN CIF - need-to-know spammed domain http://www.spamhaus.org/query/dbl?domain=mete-tools.biz (public) - - 95
rttvxygkmwlqmq.net Intel:OMAIN CIF - need-to-know spammed domain http://www.spamhaus.org/query/dbl?domain=rttvxygkmwlqmq.net (public) - - 95
podserveruho.com Intel:OMAIN CIF - need-to-know spammed domain http://www.spamhaus.org/query/dbl?domain=podserveruho.com (public) - - 95
wwfcogdgntlxw.biz Intel:OMAIN CIF - need-to-know spammed domain http://www.spamhaus.org/query/dbl?domain=wwfcogdgntlxw.biz (public) - - 95
}}

I compiled bro with gperftool debug support and followed the instructions here: http://www.bro.org/development/howtos/leaks.html. (Note, the instructions are wrong on the flags for ./configure, you need to add --enable-perftools-debug to get the -m option for bro)

Here's the output from pprof top after running a PCAP trace with 10,000 packets. Running traces with more packets show a greater number of lost objects in the same code locations.

{{

1. pprof bin/bro "/tmp/bro.24541.net_run-end.heap" --inuse_objects --lines --heapcheck --edgefraction=1e-10 --nodefraction=1e-10
   Using local file bin/bro.
   Using local file /tmp/bro.24541.net_run-end.heap.
   Welcome to pprof! For help, type 'help'.
   (pprof) top
   Total: 4295 objects
   2150 50.1% 50.1% 2150 50.1% AsciiFormatter:arseValue /usr/src/bro-2.2/src/threading/AsciiFormatter.cc:186
   2141 49.8% 99.9% 2141 49.8% copy_string /usr/src/bro-2.2/src/util.cc:155
   2 0.0% 100.0% 2 0.0% re_alloc /usr/src/bro-2.2/build/src/re-scan.cc:2287
   1 0.0% 100.0% 1 0.0% RE_parse /usr/src/bro-2.2/build/src/re-parse.y:110
   1 0.0% 100.0% 1 0.0% RE_parse /usr/src/bro-2.2/build/src/re-parse.y:133
   0 0.0% 100.0% 2141 49.8% AsciiFormatter:arseValue /usr/src/bro-2.2/src/threading/AsciiFormatter.cc:195
   0 0.0% 100.0% 4 0.1% Connection::NextPacket /usr/src/bro-2.2/src/Conn.cc:259
   0 0.0% 100.0% 4 0.1% NetSessions:ispatchPacket /usr/src/bro-2.2/src/Sessions.cc:189
   0 0.0% 100.0% 4 0.1% NetSessions:oNextPacket /usr/src/bro-2.2/src/Sessions.cc:709
   0 0.0% 100.0% 4 0.1% NetSessions::NextPacket /usr/src/bro-2.2/src/Sessions.cc:247
   }}