Invalid "Trying to cancel a request that is not in flight" warnings

[ryanashcraft]

Created from #5 (comment)

The issue occurs with connectRequest when query key for the query config returned from mapPropsToConfig is derived from redux state that changed from the request finishing.

Pretty sure this is a race condition due to query middleware dispatching the REQUEST_SUCCESS event before the requestAsync promise is resolved. Since connectRequest has its own state for pending requests, it can get out of sync and cause cancel actions to be dispatched.