Fix a pretty bad bug (found by the tests, yay!) that allowed sharing of default values (like hashes) across plugin instances. This bug only really impacted tests, but was important to fix for the future where logstash might support multiple pipelines (or reloads).
Fix a pretty bad bug (found by the tests, yay!) that allowed sharing of
default values (like hashes) across plugin instances. This bug only
really impacted tests, but was important to fix for the future where
logstash might support multiple pipelines (or reloads).

joekiller/logstash-kafka,tinglinux/logstash-kafka,opentable/logstash-kafka,Aloomaio/logstash-kafka,opentable/logstash-kafka,joekiller/logstash-kafka,tinglinux/logstash-kafka,Aloomaio/logstash-kafka