Avoid breaking Calculator when avalara_response is not a hash
#177
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I ran on a scenario where the `avalara_response` would not be `nil` but not be a Hash either when the request failed - causing a cryptic `undefined method :each for nil class` up the stack. It was related to imported Orders that tried to calculate tax with Avalara. In any case, this is just a naive fix, but it should hopefully save some headache from people that encounter something similar in the future.
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I ran on a scenario where the
avalara_responsewould not benilbut not be a Hash either when the request failed - causing a crypticundefined method :each for nil classup the stack. It was related to imported Orders that tried to calculate tax with Avalara.In any case, this is just a naive fix, but it should hopefully save some headache from people that encounter something similar in the future.