Fix bugs in shadow sample. #204
Merged
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Wait until we've subscribed to all "reponse" topics before subscribing to "delta". This fixes a bug where a "delta" that fires right away, results in a "update-request" being sent, but we're not yet subscrubed to the "update-response".
Connect with clean_session=True. This avoids weird stuff where we get responses to old requests immediately upon subscribing.
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