added test which raises bug in response variable initialization (#317)
added test which raises bug in response variable initialization (#317)

Co-authored-by: klag <540360ebb9db39977f43165f53b03889ce7b78fb@italianasoftware.com>
Former-commit-id: 6d29aae39ef594fc4315c0166d55507ee376d842
jolie/jolie,jolie/jolie,jolie/jolie