def get_output(self, remote_command):
        self.thread_id = current_thread().ident
        self.remote_command = remote_command
        result = self._outputs.pop(0)
        if isinstance(result, Exception):
            raise result
        else:
            return result
The same format field used twice in one event is rendered twice.
dataset/ETHPy150Open ClusterHQ/flocker/flocker/common/_ipc.py/FakeNode.get_output--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/logger/test/test_flatten.py/FlatFormattingTests._test_formatFlatEvent_fieldNamesSame