Multiple responder actions does not seem to be handled

[srilumpa]

Request Type

Bug

Work Environment

Question	Answer
OS version (server)	Ubuntu
TheHive version / git hash	3.1.0-RC3
Package Type	From source

Problem Description

When a responder has multiple operations, it seems only the first one is being executed by TheHive.

Steps to Reproduce

1. Have an analyzer with two AddTagToCase operations
2. Execute it on a case
3. See the first tag appears but never the second one

Complementary information

My responder has the following operations:

    def operations(self, raw):
        ops = []
        ops.append(self.build_operation('AddTagToCase', tag="ticket:{}#{}".format(self.instance_name, raw['issue']['issue']['id'])))
        ops.append(self.build_operation('AddTagToCase', tag="ticket created"))
        return ops

When I execute the responder, only the first tag (ticket:name#num) appears. The two operations are present in the Cortex output If I comment the first operation build, I have the second tag appearing (ticket created)