Add test which shows bug in PulsarExec constructor.
Add test which shows bug in PulsarExec constructor.

cargomedia/pulsar-rest-api,cargomedia/pulsar-rest-api,vogdb/pulsar-rest-api,vogdb/pulsar-rest-api,njam/pulsar-rest-api,vogdb/pulsar-rest-api,cargomedia/pulsar-rest-api,njam/pulsar-rest-api,njam/pulsar-rest-api,njam/pulsar-rest-api,cargomedia/pulsar-rest-api