CXXCBC-403: Allow retries for KV not_my_vbucket response #480
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Motivation
Currently if a KV operation receives a NMVB, it is possible the operation will raise a request_canceled error. When the client receives a NMVB there are circumstances in which we should attempt to retry the operation instead of raising a request_canceled.
Changes
Update logic for handling NMVB KV responses so that retries are possible when appropriate.