client: pass the provided ctx to backoff.RetryNotify #146
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If we hit a connection error in any of the ..WithContext functions, we end up blocked in the backoff.RetryNotify loop. This loop can use a context, but it needs to be bound to the BackOff provided when RetryNotify is called.
Added a test case
TestSubscribeWithContextAbortRetrierto demonstrate the problem and verify the fix.Fixes #131.