Handler code is reading binary data

Build: 6.5.0-2943 , failed between 6.5.0-2343 and 6.5.0-2360

Seeing that handler is reading binary data

./testrunner -i vikas-nodes.ini -t eventing.eventing_negative.EventingNegative.test_read_binary_data_from_the_function,nodes_init=1,services_init=kv:eventing:index:n1ql,dataset=default,groups=simple,reset_services=True,skip_cleanup=True 

• Create handler code which reads binary docs (as per requirement we should not able to read binary data within handler code).
  

  function OnUpdate(doc, meta) {

  var doc_id = meta.id;

  log('reading document from dst_bucket : ', doc_id);

  dst_bucket[meta.id + "11111111"] = dst_bucket[doc_id];

  }

  * Deploy this handler code and we are expecting bucket op should fail. But we are seeing doc with "undefined" data in the bucket