apcera / gnatsd / 314

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travis-ci

Fix handling of duplicate SUB protocol.

This is issue #136. With routes, it is possible that a subscriber connects (or reconnects) and is about to broadcast the SUB protocol to the routed server, and at the same time, the server sends the list of the local subscriptions. This would result in a SUB processed twice, adding the same sub in the sublist twice. If the server sending the subscription list is restarted, this will leave "detached" subscriptions in the sublist which would trigger the "Bad or Missing ROUTER info" for every message published on that subject.

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