Consumer should close subscriptions on erroneous request
Currently, if an error occurs while processing a request in JettyHttpServerHandler
an error response is sent to the Provider, yet subscriptions are not closed by the Consumer. Rather, the Provider decides to close the subscriptions as a result of the error response from Consumer. A subsequent renew from the Consumer would then fail and the Consumer would disconnect from the Provider.
If a misbehaving Provider would not close the subscriptions on error, an SDC-ri Consumer would keep the subscriptions open and not disconnect from the Provider.