SimpleQueryBus subscriptionquery doesn't correctly report errors for initialResult

[abuijze]

When an QueryHandler throws an exception, these are not correctly reported in the initialResult of a subscription query. While regular queries report them as part of the QueryResult, Subscription queries report them directly on the Mono.

Similar to the regular Query, exceptions by QueryHandlers should be reported as the result of a Query in the QueryResultMessage.

[smcvb]

Closing, as this issue has been resolved in commit fcc7081.