[wsia][wsia-requirements][E903]

E903
		The specification must specify the means by which a Producer
indicates which actions, events and operations are to be redirected to the
stateful connection between the Consumer and Producer.

Reword to sync with E902:

E903
		When a Producer has returned a Handle as part of the
response to an End User invocation, the Consumer must ensure that Handle is
embedded as a parameter in any future invocations involving the End User and
this Producer.