fix: Fix cancellation logic for AWSGraphQLSubscriptionOperation #650
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The current AWSGraphQLSubscriptionOperation implementation does not handle cancellations correctly:
isCancelled
advisory flag in all code pathsThis fix causes all code paths through
cancel
to both set the advisory flag and emit a completion to the result listener. Active subscriptions will also receive a "disconnected subscription" event, as before.By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.