Non-subscribed requests with `keepUnusedDataFor: 0` are canceled

[markerikson]

If I set keepUnusedDataFor: 0 on an endpoint,
and in a component call initiate inside a useEffect with the option { subscribe: false },

then the request never returns a response because it gets immediately aborted.

Is this the expected behavior?

Originally posted by @yankinx in #5067 (comment)